Skip to content

gh-121889: cmath.acosh(0+nanj) returns nan+pi/2j #121892

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
mdickinson merged 1 commit into from
Aug 4, 2024
Merged

gh-121889: cmath.acosh(0+nanj) returns nan+pi/2j #121892

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
4 changes: 2 additions & 2 deletions Lib/test/mathdata/cmath_testcases.txt
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -371,9 +371,9 @@ acosh1002 acosh 0.0 inf -> inf 1.5707963267948966
acosh1003 acosh 2.3 inf -> inf 1.5707963267948966
acosh1004 acosh -0.0 inf -> inf 1.5707963267948966
acosh1005 acosh -2.3 inf -> inf 1.5707963267948966
acosh1006 acosh 0.0 nan -> nan nan
acosh1006 acosh 0.0 nan -> nan 1.5707963267948966 ignore-imag-sign
acosh1007 acosh 2.3 nan -> nan nan
acosh1008 acosh -0.0 nan -> nan nan
acosh1008 acosh -0.0 nan -> nan 1.5707963267948966 ignore-imag-sign
acosh1009 acosh -2.3 nan -> nan nan
acosh1010 acosh -inf 0.0 -> inf 3.1415926535897931
acosh1011 acosh -inf 2.3 -> inf 3.1415926535897931
Expand Down
1 change: 1 addition & 0 deletions Misc/NEWS.d/next/Library/2024-07-17-09-23-03.gh-issue-121889.6se9jS.rst
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
Adjusts ``cmath.acosh(complex('0+nanj'))`` for recent C standards.
4 changes: 2 additions & 2 deletions Modules/cmathmodule.c
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1259,8 +1259,8 @@ cmath_exec(PyObject *mod)
INIT_SPECIAL_VALUES(acosh_special_values, {
C(INF,-P34) C(INF,-P) C(INF,-P) C(INF,P) C(INF,P) C(INF,P34) C(INF,N)
C(INF,-P12) C(U,U) C(U,U) C(U,U) C(U,U) C(INF,P12) C(N,N)
C(INF,-P12) C(U,U) C(0.,-P12) C(0.,P12) C(U,U) C(INF,P12) C(N,N)
C(INF,-P12) C(U,U) C(0.,-P12) C(0.,P12) C(U,U) C(INF,P12) C(N,N)
C(INF,-P12) C(U,U) C(0.,-P12) C(0.,P12) C(U,U) C(INF,P12) C(N,P12)
C(INF,-P12) C(U,U) C(0.,-P12) C(0.,P12) C(U,U) C(INF,P12) C(N,P12)
C(INF,-P12) C(U,U) C(U,U) C(U,U) C(U,U) C(INF,P12) C(N,N)
C(INF,-P14) C(INF,-0.) C(INF,-0.) C(INF,0.) C(INF,0.) C(INF,P14) C(INF,N)
C(INF,N) C(N,N) C(N,N) C(N,N) C(N,N) C(INF,N) C(N,N)
Expand Down