Question

How to find cube root in Python

Answer 1

def cube_root(x):
  if x >= 0:
     return x ** (1/3)
  else:
     return -((-x) ** (1/3))


print(cube_root(27))
print(cube_root(-27))
print(cube_root(0))
print(cube_root(16))
 
 
 
'''
run:
 
3.0
-3.0
0.0
2.5198420997897464
  
'''

 

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Answer 2

import numpy as np

print(np.cbrt(27))
print(np.cbrt(-27))
print(np.cbrt(0))
print(np.cbrt(16))



 
'''
run:
  
3.0000000000000004
-3.0000000000000004
0.0
2.519842099789747
   
'''

 

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