Hi Swdrury, On Sun, Jan 31, 2016 at 5:04 AM, <[email protected]> wrote: > This is literally my first program using sympy, based on an example from my > calculus class: > > from sympy import * > > def main(): > x=symbols("x") > f=exp(x**3)*cos(x**6) > print(series(f,x,0,14)) > print(series(f,x,0,19)) > > if __name__ == "__main__": > main() > > The output: > > 1 + x**3 + x**6/2 + x**9/6 + x**12/24 + O(x**14) > 1 + x**3 + x**6/2 + x**9/6 - 11*x**12/24 - 59*x**15/120 - 179*x**18/720 + > O(x**19) > > As you can see at least one of the answers is wrong.
Thanks for reporting it. I created an issue for it here: https://github.com/sympy/sympy/issues/10503 The series is pretty well tested, so I am surprised that there is a bug like this. This needs to be fixed. > Should I bother using sympy a second time? We'll update the issue once this is fixed. If you find any other issues, please let us know. Thanks, Ondrej -- 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/CADDwiVA-6q%2Bm%2BSvgkOx0Z6%2BAUk6vCAmkj_0zh9SHOgh1qt%3D8cg%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
