On Friday, 7 March 2014 20:43:48 UTC+1, Manuel Schleiffelder wrote: > > hello everyone, > > i am working on plots in the complex-plane and got stuck trying to > sutbstitue values to the symbols of a certain class of equations. the wired > thing is, that i only get the "TypeError" the first time i substitute(In > [3]:). second try it works(In [4]:) like a charm until i alter the equation > or start over again. > > i was able to track the error down to a simpler form of nested functions > (mathematically senseless, just for demonstration purposes): > > >>> re(acos(re(x))).subs(x,5) > > Thanks for the bug report. Can you open an issue at https://github.com/sympy/sympy/issues?state=open ? Cheers, Julien
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