Situatie
In this program, you’ll learn to find the square root of a number using exponent operator and cmath module.
Backup
Example: For positive numbers
# Python Program to calculate the square root
# Note: change this value for a different result
num = 8
# To take the input from the user
#num = float(input('Enter a number: '))
num_sqrt = num ** 0.5
print('The square root of %0.3f is %0.3f'%(num ,num_sqrt))Output
The square root of 8.000 is 2.828
Solutie
Source code: For real or complex numbers
# Find square root of real or complex numbers
# Importing the complex math module
import cmath
num = 1+2j
# To take input from the user
#num = eval(input('Enter a number: '))
num_sqrt = cmath.sqrt(num)
print('The square root of {0} is {1:0.3f}+{2:0.3f}j'.format(num ,num_sqrt.real,num_sqrt.imag) Output:The square root of (1+2j) is 1.272+0.786j
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