Overview
KB
Technical FAQ
PHP Manual
CSS2 Manual
HTML Manual
JS Guide
JS Reference
PhpDock Manual
Nu-Coder Manual
PhpExpress Manual
PHP Joomla
Development
Learn PHP
 
<Trader Functionstrader_ad>
^Trader FunctionsLast updated: Mon, 26 Oct 2026

trader_acos

(PECL trader >= 0.2.0)

trader_acos — Vector Trigonometric ACos

Description

function trader_acos(array $real): array

Calculates the arc cosine for each value in real and returns the resulting array.

Parameters

real

Array of real values.

Return Values

Returns an array with calculated data or false on failure.


<Trader Functionstrader_ad>
^Trader FunctionsLast updated: Mon, 26 Oct 2026