electricpy.latex.clatex() rejects NumPy complex scalars (raises ValueError("Invalid Input Type"))

[marcostfermin]

Describe the bug

clatex() only accepts:

list (converted to np.asarray),

np.ndarray,

or built-in complex.

A NumPy scalar like np.complex128(1+2j) is not an instance of built-in complex, so it falls through to raise ValueError("Invalid Input Type").

The type checks causing this are in the module code.
https://electricpy.readthedocs.io/en/latest/_modules/electricpy/latex.html

Reproduction Code

# Setup
import numpy as np
import electricpy as ep

# Code which causes failure
z = np.complex128(3 + 4j)  # common scalar type from numpy operations
ep.latex.clatex(z)

Expected behavior
Return a LaTeX string for the complex value (either polar or rectangular), same as for 3+4j.

Screenshots
If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• OS: [e.g. Linux]
• Python Version [e.g. 3.7]
• Version [e.g. 0.4.0]

Additional context
clatex checks elif isinstance(val, complex): ... else: raise ValueError("Invalid Input Type"), which excludes NumPy complex scalar types.