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bpo-41513: More accurate hypot()#21916

Merged

rhettinger merged 12 commits into

python:masterpython/cpython:masterfrom

rhettinger:hypot_zerorhettinger/cpython:hypot_zeroCopy head branch name to clipboard

Aug 25, 2020

Conversation Commits12 (12)Checks Files changed

Merged

bpo-41513: More accurate hypot()#21916
rhettinger merged 12 commits into
python:masterfrom
rhettinger:hypot_zero

Commits

Commits on Aug 18, 2020

First draft. Tests fail.
rhettinger
committed
Was squaring twice
rhettinger
committed
Divided by scale too early
rhettinger
committed
Fix order of application. Add more assertions
rhettinger
committed

Commits on Aug 23, 2020

Start to refine assertions
rhettinger
committed
The actual summation invariant is expressed in magnitudes
rhettinger
committed
Explain the algorithm in the comments. Provide references. Improve variable names.
rhettinger
committed
Add blurb
rhettinger
committed
Move the splitting constant into the function that uses it.
rhettinger
committed

Commits on Aug 24, 2020

Drop the requirement that input elements are non-negative.
rhettinger
committed
Update Modules/mathmodule.c

rhettinger
and
tim-one
authored
Keep the summation order consistent between sections
rhettinger
committed

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