← 返回首页
Let math.nextafter() compute multiple steps at a time. · Issue #94906 · python/cpython · GitHub
Skip to content

Navigation Menu

Toggle navigation
Sign in
Appearance settings
Search or jump to...

Search code, repositories, users, issues, pull requests...

Provide feedback

We read every piece of feedback, and take your input very seriously.

Include my email address so I can be contacted

Saved searches

Use saved searches to filter your results more quickly

Appearance settings
Resetting focus

Let math.nextafter() compute multiple steps at a time. #94906

New issue
New issue

Description

Sometimes math.nextafter() needs to be applied multiple times in succession.

x = nextafter(nextafter( nextafter(x, inf), inf), inf) # Three steps up

It would be nice if the function supported this directly:

x = nextafter(x, inf, n=3)

The implementation would just be a for-loop:

def newnextafter(x, y, /, *, n=1): 'Return the floating-point value n steps after x towards y.' for i in range(n): x = nextafter(x, y) return x

The formal paramater can be just n or the longer but more descriptive steps.

Linked PRs

Metadata

Metadata

Assignees

No one assigned

    Labels

    3.12only security fixestype-featureA feature request or enhancement

    Fields

    No fields configured for issues without a type.

    Projects

    No projects

    Milestone

    No milestone

    Relationships

    None yet

    Development

    No branches or pull requests

    Issue actions

    • Open in GitHub Copilot app

    Footer

    © 2026 GitHub, Inc.