On Saturday, September 19, 2015 at 12:58:53 PM UTC-4, brombo wrote:
>
> How do I define a real function of a real variable?
>
> X = symbols('x y z',real=True)
>
> f = Function('f',real=True)(*X)
>
> "real=True" in Function doesn't do anything.
>
Let me clarify. If I use the above to define f then
re(f) returns re(f) not f and
im(f) returns im(f) not 0.
f is being treated as a fuction with an arbitrary real and imaginary part.
How do I avoid this so that
f = re(f)
0= im(f)
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