Complex vector operations, absolute value & phase

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1

Hi!

I am working with complex vectors.
Is there any fast way to get the element wise absolute value and phase of the vector entries?
Getting the real and imaginary values with vector.real and vector.imag is helpful but I could not find such functions for the absolute or phase.

Thank You

2

You can use numpy for that. You can get a view of the vector as a numpy array by

vec.FV().NumPy()

Best
Christopher

3

Hi Christopher.

Thank you. Using numpy for complex vector operations is useful.
But is there a way to convert numpy vectors back into a GridFunction so I can plot results onto the mesh?

Best regards,
Nils

4

You can assign to that vector as well:

npvec = gf.vec.FV().NumPy()
npvec[:] = some_array

Best
Christopher