ASKSAGE: Sage Q&A Forum - RSS feedhttps://ask.sagemath.org/questions/Q&A Forum for SageenCopyright Sage, 2010. Some rights reserved under creative commons license.Wed, 19 Apr 2017 04:17:36 +0200Why does simplify break print_latex_func?https://ask.sagemath.org/question/37328/why-does-simplify-break-print_latex_func/Here's a minimal example of what I am talking about. Both print statements should return the same output in this scenario.
,var n x
def my_latex_print(self, *args):
return "a_{%s}" %(', '.join(map(latex, args)))
a=function('a',nargs=1,print_latex_func=my_latex_print)(n)
sexp=a(n=n+1)+a(n=n)
print latex(sexp)
sexp=simplify(expand(sexp))
print latex(sexp)
However, the outputs differ:
a_{n + 1} + a_{n}
a\left(n + 1\right) + a\left(n\right)
Of course simplify-expand may lead to a different expression, but that's not what I am concerned about. I am concerned about the representation of `a(n)` instead of `a_n` in the output.
My main question is: How can I recover `a_n` out of `sexp` at the end of my code?BjörnWed, 19 Apr 2017 04:17:36 +0200https://ask.sagemath.org/question/37328/