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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Let math.nextafter() compute multiple steps at a time.","articleBody":"Sometimes ``math.nextafter()`` needs to be applied multiple times in succession. \r\n\r\n       x = nextafter(nextafter( nextafter(x, inf), inf), inf)    # Three steps up\r\n\r\n It would be nice if the function supported this directly:\r\n\r\n       x = nextafter(x, inf, n=3)\r\n\r\nThe implementation would just be a for-loop:\r\n\r\n```\r\ndef newnextafter(x, y, /, *, n=1):\r\n    'Return the floating-point value n steps after x towards y.'\r\n    for i in range(n):\r\n        x = nextafter(x, y)\r\n    return x\r\n```\r\n\r\nThe formal paramater can be just ``n`` or the longer but more descriptive ``steps``.\n\n\u003c!-- gh-linked-prs --\u003e\n### Linked PRs\n* gh-103881\n\u003c!-- /gh-linked-prs --\u003e\n","author":{"url":"https://github.com/rhettinger","@type":"Person","name":"rhettinger"},"datePublished":"2022-07-16T16:41:46.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":18},"url":"https://github.com/94906/cpython/issues/94906"}