Ok, there are still two details that I can not find in the code. Tom just wrote that on the wiki:
> If you named your function after the mpmath counterpart, then evaluation > should work automatically. This should be the case for the vast majority of > functions implemented in sympy. Where does this magic happen in the code? > If your function is essentially equivalent to an mpmath function but has a > different name (hopefully for a good reason!), then you can add a translation > in sympy/utilities/lambdify.py. This is the case for example the > trigonometric integrals like Shi(x). Where in evalf is this translation looked up? -- You received this message because you are subscribed to the Google Groups "sympy" group. To post to this group, send email to sympy@googlegroups.com. To unsubscribe from this group, send email to sympy+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sympy?hl=en.