Write a program to find the product of all elements of a list in Python

Given a list, print the value obtained after multiplying all numbers in a list.
Examples:

Method 1: Traversal

Initialize the value of the product to 1[not 0 as 0 multiplied with anything returns zero]. Traverse till the end of the list, multiply every number with the product. The value stored in the product at the end will give you your final answer.
Below is the Python implementation of the above approach:

Output:

Method 2: Using numpy.prod[]

We can use numpy.prod[] from import numpy to get the multiplication of all the numbers in the list. It returns an integer or a float value depending on the multiplication result.
Below is the Python3 implementation of the above approach:

Output:

Method 3 Using lambda function: Using numpy.array

Lambda’s definition does not include a “return” statement, it always contains an expression that is returned. We can also put a lambda definition anywhere a function is expected, and we don’t have to assign it to a variable at all. This is the simplicity of lambda functions. The reduce[] function in Python takes in a function and a list as an argument. The function is called with a lambda function and a list and a new reduced result is returned. This performs a repetitive operation over the pairs of the list.
Below is the Python3 implementation of the above approach:

Output:

Method 4 Using prod function of math library: Using math.prod

Starting Python 3.8, a prod function has been included in the math module in the standard library, thus no need to install external libraries.
Below is the Python3 implementation of the above approach:

Output:

Python: Multiply all the items in a list

Python Program To Multiply all numbers in the list

In this tutorial, you will learn to multiply all numbers in a list in Python. List is an ordered set of values enclosed in square brackets [ ]. List stores some values called elements in it, which can be accessed by their particular index. We will write a function that will multiply all numbers in the list and return the product.

Multiplying all the values will give a single product. For example, for a list [2, 5, 9] the product will be 90. We will be discussing the various approaches by which we can calculate the product of all numbers in a list.

Take a look at the sample input and output

Input: list= [5, 3, 2, 7]

Output: 210

Multiply all elements in list Python

In this post, you will learn how to multiply all elements in a list in Python.

A list is a sequence of indexed and ordered values like an array. It is mutable, which means we can change the order of elements in a list. A list in Python is a linear data structure that can hold heterogeneous elements. It is flexible to shrink and grow, and there is no need to declare it.

There are different ways in Python to multiply all the elements in a list.

Multiply All Elements in list of Python

In this tutorial, we will learn how we can multiply all the elements of a list in Python.

Let us have a look at some examples to understand our objective-

We can observe that in the output we have obtained the product of all the elements present in the list.

Since the first element is three, a is printed three times in the output.

We will learn the following methods-

1. Traversing the list
2. Using NumPy
3. Using lambda

Let's start with the first one,