Understanding PHP’s sinh() Function: Hyperbolic Sine Explained with Examples
Learn how PHP’s sinh() function computes the hyperbolic sine of a number, its signature, parameter description, return type, and see practical code examples that demonstrate results for positive, negative, zero, and constant inputs like π and π/2.
In PHP, the sinh() function returns the hyperbolic sine of a given numeric argument, defined as (exp(arg) - exp(-arg)) / 2.
Signature float sinh(float $arg) Parameter $arg – the value whose hyperbolic sine is to be calculated.
Return value
The hyperbolic sine of $arg as a float.
Examples
<?php
echo sinh(3) . "<br>"; // 10.01787492741
echo sinh(-3) . "<br>"; // -10.01787492741
echo sinh(0) . "<br>"; // 0
echo sinh(M_PI) . "<br>"; // 11.548739357258
echo sinh(M_PI_2) . "<br>"; // 2.3012989023073Signed-in readers can open the original source through BestHub's protected redirect.
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