28 Jul
2006
28 Jul
'06
7:14 p.m.
Hello, I tried different arcsin functions on a complex number (z=0.52+0j) and obtained the following results: cmath.asin(z) gives (0.54685095069594414+0j) #okay -1j*log(1j*z+sqrt(1-z**2)) gives (0.54685095069594414+0j) #okay, by definition numarray.arcsin(z) gives (0.54685095069594414+0j) #still okay but numpy.arcsin(z) gives (0.54685095069594414+0.54685095069594414j) #bug?? Is it really a bug in numpy, or is there another explanation? Thanks Daniel Poitras Ottawa