What is the usage of exponential function in php

The exponential function in php is exp(). The function of this function is to calculate the exponent of e. Its usage syntax is such as "exp(x)". The parameter x represents a number, and the return value is the x times of e. square value.

The operating environment of this article: Windows 7 system, PHP version 7.1, Dell G3 computer.

What is the usage of exponential function in PHP?

PHP exp() function

Definition and usage

exp() function calculates the exponent of e.

Syntax

exp(x)

Parameters

x Required. A number.

Description

Returns the value of e raised to the power of x. .

Tips and Notes

Tip: Use 'e' as the base of the natural logarithm 2.718282.

Example

In this example, we will apply the exp() function to different numbers:

<?php
echo(exp(1));
echo(exp(-1));
echo(exp(5));
echo(exp(10))
?>

Output:

2.718281828459045
0.36787944117144233
148.4131591025766
22026.465794806718

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