[Python-bugs-list] [Bug #133297] cmath.asin is the same as cmath.asinh

noreply@sourceforge.net noreply@sourceforge.net
Tue, 20 Feb 2001 11:44:07 -0800


Bug #133297, was updated on 2001-Feb-20 11:44
Here is a current snapshot of the bug.

Project: Python
Category: Python Library
Status: Open
Resolution: None
Bug Group: None
Priority: 5
Submitted by: nobody
Assigned to : nobody
Summary: cmath.asin is the same as cmath.asinh

Details: cmath.asin returns incorrect results for all arguments except 0. 
It appears that it actually returns arcsinh of its argument.

e.g. asin(2.0) gives (1.44363547518+0j) -- actually asinh(2.0) -- instead
of (pi/2-1.31695789692j).

This problem is not present in the math module.  It was also not present in
version 1.52.  It is present in version 2.0. however.  It occurs under both
NT and Windows 2000.

P.S. I object to having to upgrade to IE 5.01 to log into Sourceforge, so
no email address -- why is SSL required?

For detailed info, follow this link:
http://sourceforge.net/bugs/?func=detailbug&bug_id=133297&group_id=5470