 | 1 | initial version |
I can do
f(a,b) = a^2+b^3; f=f-f.subs(a=(a-1))
(a, b) |--> -(a - 1)^2 + a^2
I tried to write a function which does this vor arbitrary expressions and variables
def test(self, symb):
return (self-self.subs(symb=(symb-1)))
but
test(f,a)
(a, b) |--> 0
fails miserably. It seems self.subs(symb=(symb-1)) can not be evaluated properly. How can I achieve what I want?
I can do
f(a,b) = a^2+b^3; f=f-f.subs(a=(a-1))
(a, b) |--> -(a - 1)^2 + a^2
I tried to write a function which does this vor for arbitrary expressions and variables
def test(self, symb):
return (self-self.subs(symb=(symb-1)))
but
test(f,a)
(a, b) |--> 0
fails miserably. It seems self.subs(symb=(symb-1)) can not be evaluated properly. How can I achieve what I want?
Copyright Sage, 2010. Some rights reserved under creative commons license. Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.