Support for interpolation of complex-valued functions

[mjo22]

Hello, it would be great if the interpolation methods were general enough to support the interpolation of complex-valued functions.

[f0uriest]

Can you be a bit more specific? I think they should work fine as is for complex valued functions of a real variable. Do you mean functions of a complex variable? That should also work using interp2d treating x as the real part and y as the imaginary part.