Dear all,
I have a complex expression and I want to separate imaginary and real part,
however I noticed that when I have derivatives on a function, the real and
imaginary part separation does not work properly:
t = sy.Symbol("t", real = True)
f = sy.Function("f", real = True)(t)
Then if I ask sympy the imaginary part of f, it correctly returns 0,
however if I ask the immaginary part of the derivative of f, it is not able
to see that it is zero:
sy.im(f) # this is zero (ok!)
sy.im(sy.diff(f, t)) # does not simplify to zero
How can I force sympy to set automatically the derivative of f to real
numbers?
Thanks in advance for the help,
Bests,
Lorenzo
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