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Python – cmath.phase() function

  • Last Updated : 28 May, 2020

cMath module contains a number of functions which is used for mathematical operations for complex numbers. The cmath.phase() function is used to get the phase of a complex number. The value passed in this function can be int, float, and complex numbers.

Syntax: cmath.phase(x)

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Parameter:This method accepts the following parameters.

  • x :This parameter is the number to find the phase of.

Returns:This method returns a float value that represent the phase of a complex number.



Below examples illustrate the use of above function:

Example #1 : 

Python3




# Python code to implement
# the phase()function
        
# importing "cmath"
# for mathematical operations  
import cmath 
    
# using cmath.phase() method 
val = cmath.phase(1
print(val)

Output:

0.0

Example 2:

Python3




# Python code to implement
# the phase()function
        
# importing "cmath"
# for mathematical operations  
import cmath 
    
# using cmath.phase() method 
val = cmath.phase(1 + 4j)
print(val)

Output:

1.3258176636680326
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