numpy.angle () in Python

Counters | NumPy | Python Methods and Functions

numpy.angle() is used when we want to calculate the angle of a complex argument. A complex number is represented as "x + yi", where x and y — real numbers, and i = (-1) ^ 1/2 . The angle is calculated using the formula tan-1(x/y).

Syntax: numpy.angle (z, deg = 0)

Parameters:
z: [array_like] A complex number or sequence of complex numbers.
deg: [bool, optional] Return angle in degrees if True, radians if False (default).

Return:
angle: The counterclockwise angle from the positive real axis on the complex plane, with dtype as numpy.float64.

Code # 1: Work

# Python program explaining
# numpy.angle () function
# when we want to reply in radians

 

import numpy as geek

in_list = [ 2.0 , 1.0j , 1 + 1j ]

 

print ( "Input list:" , in_list)

 

out_angle = geek.angle (in_list) 

print ( " output angle in radians: " , out_angle) 

Output:

 Input list: [2.0, 1j, (1 + 1j)] o utput angle in radians: [0. 1.57079633 0.78539816] 

Code # 2: Work

# Program Python explaining
# numpy.angle () function
# when we want to respond in degrees

 

import numpy as geek

in_list = [ 2.0 , 1.0j , 1 + 1j ]

 

print ( " Input list: " , in_list)

  

out_angle = geek.angle (in_list, deg = True

print ( " output angle in degrees: " , out_angle ) 

Output:

 Input list: [2.0, 1j, (1 + 1j)] output angle in degrees: [0. 90. 45.] 




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