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Re: Mathematica bug??
oshaughn wrote: > Apologies ... this was a side effect of redefining 'Power' / the infix > operator ^ to do wedge products for differential forms. Apparently > Inverse calls Power during this inversion, at least for some of the > terms (?). Hence the bug. > > The code worked when I wrote it (found it?) 10 years ago, ugly as it > was. But mathematica changes since then make this old kludge fail. As a coincidence, I've been learning more about differential forms lately. Which particular package for dealing with differential forms were you using? (Note that there is a way around this, either way; use \[Wedge] instead of ^: In:= a^b // FullForm Out//FullForm= Power[a, b] In:= a \[Wedge] b // FullForm Out//FullForm= Wedge[a, b] -- Erik Max Francis && max at alcyone.com && http://www.alcyone.com/max/ San Jose, CA, USA && 37 18 N 121 57 W && AIM/Y!M/Skype erikmaxfrancis We'll have to make our own luck from now on. -- Louis Wu