Title: Unit Matrix -- from Wolfram MathWorld
Open Graph Title: Unit Matrix -- from Wolfram MathWorld
X Title: Unit Matrix -- from Wolfram MathWorld
Description: A unit matrix is an integer matrix consisting of all 1s. The m×n unit matrix is often denoted J_(mn), or J_n if m=n. Square unit matrices J_n have determinant 0 for n>=2. An m×n unit matrix can be generated in the Wolfram Language as ConstantArray[1, {m, n}]. Let R be a commutative ring with a multiplicative identity. Then the term "unit matrix" is also used to refer to an n×n square matrix A with entries in R for which there exists an n×n square matrix B...
Open Graph Description: A unit matrix is an integer matrix consisting of all 1s. The m×n unit matrix is often denoted J_(mn), or J_n if m=n. Square unit matrices J_n have determinant 0 for n>=2. An m×n unit matrix can be generated in the Wolfram Language as ConstantArray[1, {m, n}]. Let R be a commutative ring with a multiplicative identity. Then the term "unit matrix" is also used to refer to an n×n square matrix A with entries in R for which there exists an n×n square matrix B...
X Description: A unit matrix is an integer matrix consisting of all 1s. The m×n unit matrix is often denoted J_(mn), or J_n if m=n. Square unit matrices J_n have determinant 0 for n>=2. An m×n unit matrix can be generated in the Wolfram Language as ConstantArray[1, {m, n}]. Let R be a commutative ring with a multiplicative identity. Then the term "unit matrix" is also used to refer to an n×n square matrix A with entries in R for which there exists an n×n square matrix B...
Opengraph URL: https://mathworld.wolfram.com/UnitMatrix.html
Domain: mathworld.wolfram.com
| DC.Title | Unit Matrix |
| DC.Creator | Weisstein, Eric W. |
| DC.Description | A unit matrix is an integer matrix consisting of all 1s. The m×n unit matrix is often denoted J_(mn), or J_n if m=n. Square unit matrices J_n have determinant 0 for n>=2. An m×n unit matrix can be generated in the Wolfram Language as ConstantArray[1, {m, n}]. Let R be a commutative ring with a multiplicative identity. Then the term "unit matrix" is also used to refer to an n×n square matrix A with entries in R for which there exists an n×n square matrix B... |
| DC.Date.Modified | 2004-04-21 |
| DC.Subject | 15B36 |
| DC.Rights | Copyright 1999-2026 Wolfram Research, Inc. See https://mathworld.wolfram.com/about/terms.html for a full terms of use statement. |
| DC.Format | text/html |
| DC.Identifier | https://mathworld.wolfram.com/UnitMatrix.html |
| DC.Language | en |
| DC.Publisher | Wolfram Research, Inc. |
| DC.Relation.IsPartOf | https://mathworld.wolfram.com/ |
| DC.Type | Text |
| Last-Modified | 2004-04-21 |
| og:image | https://mathworld.wolfram.com/images/socialmedia/share/ogimage_UnitMatrix.png |
| og:type | website |
| twitter:card | summary_large_image |
| twitter:image:src | https://mathworld.wolfram.com/images/socialmedia/share/ogimage_UnitMatrix.png |
| None | ie=edge |
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