New submission from thor222 <[EMAIL PROTECTED]>: There's an error in the way cmath computes the inverse sine, cosine and tangent functions.
Example: In 2.6: cmath.asin(2) returns 1.5707963267948966+1.3169578969248166j However, the answer should be 1.5707963267948966-1.3169578969248166j cmath.asin(2) returns the correct answer in 2.5.2. Same problem exists in cmath.acos: In 2.6: cmath.acos(2) = -1.3169578969248164j, but should be 1.3169578969248164j (once again, 2.5.2 returns the correct answer). However, in 2.5.2 and 2.6, cmath.asin(1j) = 0.88137358701954283j, which is correct. ---------- components: Library (Lib) messages: 74917 nosy: thor222 severity: normal status: open title: Major error in cmath routines versions: Python 2.6 _______________________________________ Python tracker <[EMAIL PROTECTED]> <http://bugs.python.org/issue4139> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
