pyewjn/pynam/util/complex_integrate.py
2020-07-14 08:22:18 -05:00

31 lines
724 B
Python

import numpy as np
from scipy.integrate import quad, quadrature
def complex_quad(func, a, b, **kwargs):
def real_func(x):
return np.real(func(x))
def imag_func(x):
return np.imag(func(x))
real_integral = quad(real_func, a, b, **kwargs)
imag_integral = quad(imag_func, a, b, **kwargs)
return real_integral[0] + 1j * imag_integral[0], real_integral[1:], imag_integral[1:]
def complex_quadrature(func, a, b, **kwargs):
def real_func(x):
return np.real(func(x))
def imag_func(x):
return np.imag(func(x))
real_integral = quadrature(real_func, a, b, **kwargs)
imag_integral = quadrature(imag_func, a, b, **kwargs)
return real_integral[0] + 1j * imag_integral[0], real_integral[1:], imag_integral[1:]