I tried to fix this issue in this PR : https://github.com/sympy/sympy/pull/11804
-- Shekhar On Tuesday, 1 November 2016 23:37:34 UTC+5:30, Nathan Thern wrote: > > I'm new to sympy and pouring through the documentation. I don't understand > the "pattern" part of the argument to rewrite. The following portion of > a session illustrates my question: > > >>> f=sin(x)+cos(y)/gamma(z) > >>> f.rewrite(exp) > -I*(exp(I*x) - exp(-I*x))/2 + (exp(I*y)/2 + exp(-I*y)/2)/gamma(z) > >>> f.rewrite(sin,exp) > -I*(exp(I*x) - exp(-I*x))/2 + (exp(I*y)/2 + exp(-I*y)/2)/gamma(z) > > Why does rewrite(sin,exp) also rewrite the cos(...) part of the expression > when it has been explicitly given "sin" as the pattern to rewrite? > > NT > > > -- You received this message because you are subscribed to the Google Groups "sympy" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/sympy. To view this discussion on the web visit https://groups.google.com/d/msgid/sympy/9f7323f0-82be-4cc6-a863-39113a8defe5%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
