What is the numpy.cumprod() function in NumPy?

Overview

The numpy.cumprod() function in NumPy computes the cumulative product of the elements in a given input array over a given axis.

Syntax

numpy.cumprod(a, axis=None, dtype=None, out=None)

Parameter values

The numpy.cumprod() function takes the following parameter values:

  • a (required): This is the input array that contains numbers to be computed.
  • axis (optional): This is the axis along which the product is determined.
  • dtype (optional): This is the data type of the output array.
  • out (optional): This is the alternate array where the result is placed.

Return value

The numpy.cumprod() function returns an output array that holds the result.

Code example

import numpy as np



# Creating an array

x = np.array([1, 2, 3])



# Invoking the numpy.cumprod() function 

myarray = np.cumprod(x, axis=0)



print(x)

print(myarray)

Explanation

  • Line 1: We import the numpy module.
  • Line 4: We create an array x using the array() method.
  • Line 7: We invoke the np.cumprod() function on the array. The result is assigned to the variable myarray.
  • Line 9: We print the input array x.
  • Line 10: We print the variable myarray.
Free AI Mock Interviews
Coding Interview
Coding PatternsFree Interview
Gain insights and practical experience with coding patterns through targeted MCQs and coding problems, designed to match and challenge your expertise level.
System Design
YouTubeFree Interview
Learn to design a video streaming platform like YouTube by tackling functional and non-functional requirements, core components, and high-level to detailed design challenges.

Free Resources

License: Creative Commons-Attribution-ShareAlike 4.0 (CC-BY-SA 4.0)