What is the numpy.expm1() function in NumPy?

Overview

The numpy.expm1 function in NumPy computes the exponential minus one (exp(x) - 1) for all elements of a given input array.

Syntax

numpy.expm1(x, out=None, where=True, *)
Syntax for the numpy.expm1() function

Parameter values

The numpy.expm1() function takes the following parameter values:

  • x: This is the array-like object that contains the input values. It is required.
  • out: This is the location where the result obtained is stored. It is optional.
  • where: This is the condition over which the broadcast is done over the input. It is optional.
  • **kwargs: This represents keyword-only arguments.

Return value

The numpy.expm1 function returns an element-wise exponential minus one of the input array.

Example

import numpy as np



# Implementing the numpy.expm1() function 

print(np.expm1(5))

print(np.expm1(0.5))

print(np.expm1(1e-10))

Explanation

  • Line 1: We import the numpy module.
  • Lines 4–6: We implement the numpy.expm1() function on different input values. Then, we print each result to the console.

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