In Wolfram Alpha I can use complex expand sin(x + Iy) to get back sin(x) cosh(y) + i cos(x) sinh(y). Is there a package in Julia or alternatively Python that does the same?
expanding complex-valued functions in Julia
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1 Answers
In Julia, I find this
using SymPy
@syms x,y
sympy.expand_trig( sin(x + im*y) )
#sin(x)⋅cosh(y) + ⅈ⋅cos(x)⋅sinh(y)
The similar solution can also be found in the library SymPy of Python.
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