Evaluate sympy expression on one variable out of two

Question

I have a sympy expression with two variables

exp = x*y

I want to evaluate this function with y = 1 (to return a new expression new_exp = x)

I could only find the evalf function in the doc but it's not working (returns new_exp = x*y)

e.evalf(subs={y:1})

Any idea on this?

Thanks!

did you read here https://stackoverflow.com/questions/15197673/using-pythons-eval-vs-ast-literal-eval — Beny Gj, Apr 30 '20 at 14:02

score 0 · Accepted Answer · answered Apr 30 '20 at 14:04

0

juste found out the sub function :

doing exactly the job

answered Apr 30 '20 at 14:04

hulyce

1 Answers1