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Title: decimal --- 十進位固定點和浮點運算 — Python 3.14.0 說明文件

readthedocs-addons-api-version

Links:

	https://www.python.org/
目錄	https://python.github.io/python-docs-zh-tw/contents.html
decimal --- 十進位固定點和浮點運算	https://python.github.io/python-docs-zh-tw/library/decimal.html
Quick-start tutorial	https://python.github.io/python-docs-zh-tw/library/decimal.html#quick-start-tutorial
Decimal objects	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal-objects
Logical operands	https://python.github.io/python-docs-zh-tw/library/decimal.html#logical-operands
Context objects	https://python.github.io/python-docs-zh-tw/library/decimal.html#context-objects
常數	https://python.github.io/python-docs-zh-tw/library/decimal.html#constants
Rounding modes	https://python.github.io/python-docs-zh-tw/library/decimal.html#rounding-modes
Signals	https://python.github.io/python-docs-zh-tw/library/decimal.html#signals
Floating-point notes	https://python.github.io/python-docs-zh-tw/library/decimal.html#floating-point-notes
Mitigating round-off error with increased precision	https://python.github.io/python-docs-zh-tw/library/decimal.html#mitigating-round-off-error-with-increased-precision
特殊值	https://python.github.io/python-docs-zh-tw/library/decimal.html#special-values
Working with threads	https://python.github.io/python-docs-zh-tw/library/decimal.html#working-with-threads
Recipes	https://python.github.io/python-docs-zh-tw/library/decimal.html#recipes
Decimal FAQ	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal-faq
cmath --- 複數的數學函式	https://python.github.io/python-docs-zh-tw/library/cmath.html
fractions --- 有理數	https://python.github.io/python-docs-zh-tw/library/fractions.html
回報錯誤	https://python.github.io/python-docs-zh-tw/bugs.html
顯示原始碼	https://github.com/python/cpython/blob/main/Doc/library/decimal.rst?plain=1
索引	https://python.github.io/python-docs-zh-tw/genindex.html
模組	https://python.github.io/python-docs-zh-tw/py-modindex.html
下一頁	https://python.github.io/python-docs-zh-tw/library/fractions.html
上一頁	https://python.github.io/python-docs-zh-tw/library/cmath.html
Python	https://www.python.org/
3.14.0 Documentation	https://python.github.io/python-docs-zh-tw/index.html
Python 標準函式庫 (Standard Library)	https://python.github.io/python-docs-zh-tw/library/index.html
數值與數學模組	https://python.github.io/python-docs-zh-tw/library/numeric.html
decimal --- 十進位固定點和浮點運算	https://python.github.io/python-docs-zh-tw/library/decimal.html
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#module-decimal
Lib/decimal.py	https://github.com/python/cpython/tree/3.14/Lib/decimal.py
decimal	https://python.github.io/python-docs-zh-tw/library/decimal.html#module-decimal
float	https://python.github.io/python-docs-zh-tw/library/functions.html#float
ROUND_CEILING	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.ROUND_CEILING
ROUND_DOWN	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.ROUND_DOWN
ROUND_FLOOR	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.ROUND_FLOOR
ROUND_HALF_DOWN	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.ROUND_HALF_DOWN
ROUND_HALF_EVEN	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.ROUND_HALF_EVEN
ROUND_HALF_UP	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.ROUND_HALF_UP
ROUND_UP	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.ROUND_UP
ROUND_05UP	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.ROUND_05UP
Clamped	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Clamped
InvalidOperation	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.InvalidOperation
DivisionByZero	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.DivisionByZero
Inexact	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Inexact
Rounded	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Rounded
Subnormal	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Subnormal
Overflow	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Overflow
Underflow	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Underflow
FloatOperation	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.FloatOperation
The General Decimal Arithmetic Specification	https://speleotrove.com/decimal/decarith.html
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#quick-start-tutorial
getcontext()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.getcontext
FloatOperation	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.FloatOperation
InvalidOperation	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.InvalidOperation
quantize()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.quantize
getcontext()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.getcontext
Context()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context
setcontext()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.setcontext
decimal	https://python.github.io/python-docs-zh-tw/library/decimal.html#module-decimal
BasicContext	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.BasicContext
ExtendedContext	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.ExtendedContext
clear_flags()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.clear_flags
traps	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.traps
Decimal	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal-objects
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal
Decimal	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal
float	https://python.github.io/python-docs-zh-tw/library/functions.html#float
Decimal	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal
tuple	https://python.github.io/python-docs-zh-tw/library/stdtypes.html#tuple
tuple	https://python.github.io/python-docs-zh-tw/library/stdtypes.html#tuple
float	https://python.github.io/python-docs-zh-tw/library/functions.html#float
InvalidOperation	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.InvalidOperation
Decimal	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal
float	https://python.github.io/python-docs-zh-tw/library/functions.html#float
float	https://python.github.io/python-docs-zh-tw/library/functions.html#float
FloatOperation	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.FloatOperation
float	https://python.github.io/python-docs-zh-tw/library/functions.html#float
int	https://python.github.io/python-docs-zh-tw/library/functions.html#int
float	https://python.github.io/python-docs-zh-tw/library/functions.html#float
int	https://python.github.io/python-docs-zh-tw/library/functions.html#int
fractions.Fraction	https://python.github.io/python-docs-zh-tw/library/fractions.html#fractions.Fraction
Decimal	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal
float	https://python.github.io/python-docs-zh-tw/library/functions.html#float
TypeError	https://python.github.io/python-docs-zh-tw/library/exceptions.html#TypeError
Decimal	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal
Decimal	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.adjusted
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.as_integer_ratio
Decimal	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.as_tuple
named tuple	https://python.github.io/python-docs-zh-tw/glossary.html#term-named-tuple
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.canonical
Decimal	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.compare
compare()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.compare
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.compare_signal
compare()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.compare
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.compare_total
compare()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.compare
Decimal	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal
Decimal	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.compare_total_mag
compare_total()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.compare_total
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.conjugate
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.copy_abs
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.copy_negate
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.copy_sign
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.exp
ROUND_HALF_EVEN	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.ROUND_HALF_EVEN
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.from_float
float	https://python.github.io/python-docs-zh-tw/library/functions.html#float
int	https://python.github.io/python-docs-zh-tw/library/functions.html#int
Decimal	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal
float	https://python.github.io/python-docs-zh-tw/library/functions.html#float
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.from_number
float	https://python.github.io/python-docs-zh-tw/library/functions.html#float
int	https://python.github.io/python-docs-zh-tw/library/functions.html#int
Decimal	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.fma
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.is_canonical
True	https://python.github.io/python-docs-zh-tw/library/constants.html#True
False	https://python.github.io/python-docs-zh-tw/library/constants.html#False
Decimal	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal
True	https://python.github.io/python-docs-zh-tw/library/constants.html#True
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.is_finite
True	https://python.github.io/python-docs-zh-tw/library/constants.html#True
False	https://python.github.io/python-docs-zh-tw/library/constants.html#False
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.is_infinite
True	https://python.github.io/python-docs-zh-tw/library/constants.html#True
False	https://python.github.io/python-docs-zh-tw/library/constants.html#False
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.is_nan
True	https://python.github.io/python-docs-zh-tw/library/constants.html#True
False	https://python.github.io/python-docs-zh-tw/library/constants.html#False
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.is_normal
True	https://python.github.io/python-docs-zh-tw/library/constants.html#True
False	https://python.github.io/python-docs-zh-tw/library/constants.html#False
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.is_qnan
True	https://python.github.io/python-docs-zh-tw/library/constants.html#True
False	https://python.github.io/python-docs-zh-tw/library/constants.html#False
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.is_signed
True	https://python.github.io/python-docs-zh-tw/library/constants.html#True
False	https://python.github.io/python-docs-zh-tw/library/constants.html#False
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.is_snan
True	https://python.github.io/python-docs-zh-tw/library/constants.html#True
False	https://python.github.io/python-docs-zh-tw/library/constants.html#False
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.is_subnormal
True	https://python.github.io/python-docs-zh-tw/library/constants.html#True
False	https://python.github.io/python-docs-zh-tw/library/constants.html#False
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.is_zero
True	https://python.github.io/python-docs-zh-tw/library/constants.html#True
False	https://python.github.io/python-docs-zh-tw/library/constants.html#False
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.ln
ROUND_HALF_EVEN	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.ROUND_HALF_EVEN
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.log10
ROUND_HALF_EVEN	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.ROUND_HALF_EVEN
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.logb
Decimal	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal
DivisionByZero	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.DivisionByZero
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.logical_and
logical_and()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.logical_and
Logical operands	https://python.github.io/python-docs-zh-tw/library/decimal.html#logical-operands-label
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.logical_invert
logical_invert()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.logical_invert
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.logical_or
logical_or()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.logical_or
Logical operands	https://python.github.io/python-docs-zh-tw/library/decimal.html#logical-operands-label
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.logical_xor
logical_xor()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.logical_xor
Logical operands	https://python.github.io/python-docs-zh-tw/library/decimal.html#logical-operands-label
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.max
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.max_mag
max()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.max
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.min
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.min_mag
min()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.min
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.next_minus
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.next_plus
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.next_toward
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.normalize
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.number_class
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.quantize
InvalidOperation	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.InvalidOperation
Emax	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.Emax
Etiny()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.Etiny
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.radix
Decimal	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.remainder_near
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.rotate
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.same_quantum
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.scaleb
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.shift
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.sqrt
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.to_eng_string
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.to_integral
to_integral_value()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.to_integral_value
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.to_integral_exact
Inexact	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Inexact
Rounded	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Rounded
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.to_integral_value
Inexact	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Inexact
Rounded	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Rounded
round()	https://python.github.io/python-docs-zh-tw/library/functions.html#round
int	https://python.github.io/python-docs-zh-tw/library/functions.html#int
Decimal	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal
OverflowError	https://python.github.io/python-docs-zh-tw/library/exceptions.html#OverflowError
ValueError	https://python.github.io/python-docs-zh-tw/library/exceptions.html#ValueError
int	https://python.github.io/python-docs-zh-tw/library/functions.html#int
Decimal	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal
InvalidOperation	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.InvalidOperation
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#logical-operands
logical_and()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.logical_and
logical_invert()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.logical_invert
logical_or()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.logical_or
logical_xor()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.logical_xor
Decimal	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#context-objects
getcontext()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.getcontext
setcontext()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.setcontext
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.getcontext
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.setcontext
with	https://python.github.io/python-docs-zh-tw/reference/compound_stmts.html#with
localcontext()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.localcontext
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.localcontext
TypeError	https://python.github.io/python-docs-zh-tw/library/exceptions.html#TypeError
Context	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context
TypeError	https://python.github.io/python-docs-zh-tw/library/exceptions.html#TypeError
ValueError	https://python.github.io/python-docs-zh-tw/library/exceptions.html#ValueError
localcontext()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.localcontext
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.IEEEContext
IEEE_CONTEXT_MAX_BITS	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.IEEE_CONTEXT_MAX_BITS
Context	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.BasicContext
ROUND_HALF_UP	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.ROUND_HALF_UP
Inexact	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Inexact
Rounded	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Rounded
Subnormal	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Subnormal
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.ExtendedContext
ROUND_HALF_EVEN	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.ROUND_HALF_EVEN
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.DefaultContext
Context	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context
Context	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context
Context.prec	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.prec
Context.rounding	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.rounding
ROUND_HALF_EVEN	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.ROUND_HALF_EVEN
Overflow	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Overflow
InvalidOperation	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.InvalidOperation
DivisionByZero	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.DivisionByZero
Context	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context
None	https://python.github.io/python-docs-zh-tw/library/constants.html#None
DefaultContext	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.DefaultContext
None	https://python.github.io/python-docs-zh-tw/library/constants.html#None
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.prec
MAX_PREC	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.MAX_PREC
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.rounding
Rounding Modes	https://python.github.io/python-docs-zh-tw/library/decimal.html#rounding-modes
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.traps
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.flags
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.Emin
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.Emax
MIN_EMIN	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.MIN_EMIN
MAX_EMAX	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.MAX_EMAX
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.capitals
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.clamp
Decimal	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal
Decimal	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal
Emax	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.Emax
Context	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context
Decimal	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal
adjusted()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.adjusted
as_tuple()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.as_tuple
Context	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context
Context	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context
Decimal	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal
Context	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context
int	https://python.github.io/python-docs-zh-tw/library/functions.html#int
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.clear_flags
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.clear_traps
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.copy
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.copy_decimal
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.create_decimal
Decimal	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.create_decimal_from_float
Decimal.from_float()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.from_float
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.Etiny
Etiny	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.Etiny
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.Etop
Decimal	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal
Decimal	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.abs
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.add
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.canonical
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.compare
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.compare_signal
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.compare_total
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.compare_total_mag
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.copy_abs
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.copy_negate
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.copy_sign
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.divide
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.divide_int
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.divmod
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.exp
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.fma
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.is_canonical
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.is_finite
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.is_infinite
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.is_nan
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.is_normal
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.is_qnan
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.is_signed
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.is_snan
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.is_subnormal
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.is_zero
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.ln
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.log10
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.logb
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.logical_and
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.logical_invert
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.logical_or
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.logical_xor
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.max
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.max_mag
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.min
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.min_mag
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.minus
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.multiply
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.next_minus
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.next_plus
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.next_toward
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.normalize
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.number_class
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.plus
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.power
power()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.power
exp()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.exp
ln()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.ln
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.quantize
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.radix
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.remainder
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.remainder_near
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.rotate
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.same_quantum
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.scaleb
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.shift
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.sqrt
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.subtract
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.to_eng_string
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.to_integral_exact
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.to_sci_string
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#constants
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.MAX_PREC
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.MAX_EMAX
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.MIN_EMIN
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.MIN_ETINY
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.IEEE_CONTEXT_MAX_BITS
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.HAVE_THREADS
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.HAVE_CONTEXTVAR
configured using the --without-decimal-contextvar option	https://python.github.io/python-docs-zh-tw/using/configure.html#cmdoption-without-decimal-contextvar
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#rounding-modes
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.ROUND_CEILING
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.ROUND_DOWN
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.ROUND_FLOOR
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.ROUND_HALF_DOWN
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.ROUND_HALF_EVEN
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.ROUND_HALF_UP
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.ROUND_UP
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.ROUND_05UP
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#signals
DivisionByZero	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.DivisionByZero
DivisionByZero	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.DivisionByZero
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Clamped
Emin	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.Emin
Emax	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.Emax
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.DecimalException
ArithmeticError	https://python.github.io/python-docs-zh-tw/library/exceptions.html#ArithmeticError
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.DivisionByZero
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Inexact
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.InvalidOperation
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Overflow
Context.Emax	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.Emax
Inexact	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Inexact
Rounded	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Rounded
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Rounded
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Subnormal
Emin	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.Emin
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Underflow
Inexact	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Inexact
Subnormal	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Subnormal
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.FloatOperation
Decimal	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal
create_decimal()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.create_decimal
FloatOperation	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.FloatOperation
from_float()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.from_float
create_decimal_from_float()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.create_decimal_from_float
FloatOperation	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.FloatOperation
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#floating-point-notes
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#mitigating-round-off-error-with-increased-precision
decimal	https://python.github.io/python-docs-zh-tw/library/decimal.html#module-decimal
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#special-values
decimal	https://python.github.io/python-docs-zh-tw/library/decimal.html#module-decimal
DivisionByZero	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.DivisionByZero
Overflow	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Overflow
InvalidOperation	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.InvalidOperation
False	https://python.github.io/python-docs-zh-tw/library/constants.html#False
True	https://python.github.io/python-docs-zh-tw/library/constants.html#True
InvalidOperation	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.InvalidOperation
False	https://python.github.io/python-docs-zh-tw/library/constants.html#False
compare()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.compare
compare_signal()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.compare_signal
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#working-with-threads
getcontext()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.getcontext
Context	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context
setcontext()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.setcontext
setcontext()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.setcontext
getcontext()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.getcontext
getcontext()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.getcontext
decimal.DefaultContext	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.DefaultContext
sys.flags.thread_inherit_context	https://python.github.io/python-docs-zh-tw/library/sys.html#sys.flags.thread_inherit_context
getcontext()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.getcontext
threading.Thread.start()	https://python.github.io/python-docs-zh-tw/library/threading.html#threading.Thread.start
getcontext()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.getcontext
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#recipes
Decimal	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal
¶	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal-faq
quantize()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.quantize
Inexact	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Inexact
quantize()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.quantize
quantize()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.quantize
normalize()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal.normalize
Decimal	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Decimal
Context.create_decimal()	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.create_decimal
libmpdec	https://www.bytereef.org/mpdecimal/doc/libmpdec/index.html
[1]	https://python.github.io/python-docs-zh-tw/library/decimal.html#id4
Karatsuba multiplication	https://en.wikipedia.org/wiki/Karatsuba_algorithm
Number Theoretic Transform	https://en.wikipedia.org/wiki/Discrete_Fourier_transform_(general)#Number-theoretic_transform
Emin	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.Emin
Emax	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.Emax
clamp	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.clamp
prec	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.prec
prec	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.prec
[2]	https://python.github.io/python-docs-zh-tw/library/decimal.html#id5
MAX_PREC	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.MAX_PREC
prec	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Context.prec
Inexact	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal.Inexact
1	https://python.github.io/python-docs-zh-tw/library/decimal.html#id2
2	https://python.github.io/python-docs-zh-tw/library/decimal.html#id3
目錄	https://python.github.io/python-docs-zh-tw/contents.html
decimal --- 十進位固定點和浮點運算	https://python.github.io/python-docs-zh-tw/library/decimal.html
Quick-start tutorial	https://python.github.io/python-docs-zh-tw/library/decimal.html#quick-start-tutorial
Decimal objects	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal-objects
Logical operands	https://python.github.io/python-docs-zh-tw/library/decimal.html#logical-operands
Context objects	https://python.github.io/python-docs-zh-tw/library/decimal.html#context-objects
常數	https://python.github.io/python-docs-zh-tw/library/decimal.html#constants
Rounding modes	https://python.github.io/python-docs-zh-tw/library/decimal.html#rounding-modes
Signals	https://python.github.io/python-docs-zh-tw/library/decimal.html#signals
Floating-point notes	https://python.github.io/python-docs-zh-tw/library/decimal.html#floating-point-notes
Mitigating round-off error with increased precision	https://python.github.io/python-docs-zh-tw/library/decimal.html#mitigating-round-off-error-with-increased-precision
特殊值	https://python.github.io/python-docs-zh-tw/library/decimal.html#special-values
Working with threads	https://python.github.io/python-docs-zh-tw/library/decimal.html#working-with-threads
Recipes	https://python.github.io/python-docs-zh-tw/library/decimal.html#recipes
Decimal FAQ	https://python.github.io/python-docs-zh-tw/library/decimal.html#decimal-faq
cmath --- 複數的數學函式	https://python.github.io/python-docs-zh-tw/library/cmath.html
fractions --- 有理數	https://python.github.io/python-docs-zh-tw/library/fractions.html
回報錯誤	https://python.github.io/python-docs-zh-tw/bugs.html
顯示原始碼	https://github.com/python/cpython/blob/main/Doc/library/decimal.rst?plain=1
索引	https://python.github.io/python-docs-zh-tw/genindex.html
模組	https://python.github.io/python-docs-zh-tw/py-modindex.html
下一頁	https://python.github.io/python-docs-zh-tw/library/fractions.html
上一頁	https://python.github.io/python-docs-zh-tw/library/cmath.html
Python	https://www.python.org/
3.14.0 Documentation	https://python.github.io/python-docs-zh-tw/index.html
Python 標準函式庫 (Standard Library)	https://python.github.io/python-docs-zh-tw/library/index.html
數值與數學模組	https://python.github.io/python-docs-zh-tw/library/numeric.html
decimal --- 十進位固定點和浮點運算	https://python.github.io/python-docs-zh-tw/library/decimal.html
版權所有	https://python.github.io/python-docs-zh-tw/copyright.html
歷史與授權條款	https://python.github.io/license.html
敬請捐贈。	https://www.python.org/psf/donations/
發現 bug	https://python.github.io/bugs.html
Sphinx	https://www.sphinx-doc.org/

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