How to use exponential function in php

This article mainly introduces how to use the exponential function in php, has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, the following let Xiaobian take you to understand.

The exponential function in php is exp (), which calculates the index of e using syntax such as "exp (x)", the parameter x represents a number, and the return value is the x-power value of e.

This article operating environment: Windows7 system, PHP7.1 version, Dell G3 computer.

PHP exp () function

Definition and usage

The exp () function calculates the index of e.

Grammar

Exp (x)

Parameters.

X required. A number.

Description

Returns the x-power value of e.

Tips and comments

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

Examples

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

Output:

2.7182818284590450.36787944117144233148.413159102576622026.465794806718

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