Paul Kienzle wrote: > Let me rephrase: Can we have a function sqrt(x) which returns real if x is > nonnegative, and complex if it is negative? Similarly for other math > functions > such as log which produce complex values for negative numbers? > > I suppose the numpy list is the place to debate this, but it seems like it > ought to be a feature of pylab in as much as pylab helps matlab users do > pythonic things in a familiar environment.
numpy.sqrt() won't do that (we've already discussed it). scipy.sqrt() does, though. The functions that work like this are in numpy.lib.scimath. -- Robert Kern "I have come to believe that the whole world is an enigma, a harmless enigma that is made terrible by our own mad attempt to interpret it as though it had an underlying truth." -- Umberto Eco ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Matplotlib-devel mailing list Matplotlib-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-devel
