PHP cosh()函数

PHP cosh() 是一个数学三角函数，用于返回一个数的双曲余弦值。换句话说，它将转换为双曲余弦。

语法

float cosh ( float $arg );

示例1

<?php
  n=3;
  echo "Your number is:".n;
  echo "<br>"."By using 'cosh()' function your value is:".cosh($n)."<br>";
?>

输出：

Your number is:3
By using 'cosh()' function your value is:10.067661995778

示例2

<?php
  n=(-3);
  echo "Your number is:".n;
  echo "<br>"."By using 'cosh()' function your value is:".cosh($n)."<br>";
?>

输出：

Your number is:-3
By using 'cosh()' function your value is:10.067661995778

示例3

<?php
  n=0;
  echo "Your number is:".n;
  echo "<br>"."By using 'cosh()' function your value is:".cosh($n)."<br>";
?>

输出：

Your number is:0
By using 'cosh()' function your value is:1

示例4

<?php
  n=M_PI;
  echo "Your number is: M_PI";
  echo "<br>"."By using 'cosh()' function your value is:".cosh(n)."<br>";
?>

输出：

Your number is: M_PI
By using 'cosh()' function your value is:11.591953275522

示例5

<?php
  n=2*M_PI;
  echo "Your number is: 2*M_PI";
  echo "<br>"."By using 'cosh()' function your value is:".cosh(n)."<br>";
?>

输出：

Your number is: 2*M_PI
By using 'cosh()' function your value is:267.74676148375