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tanh> <srand
Last updated: Sat, 24 Mar 2007

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tan

(PHP 4, PHP 5)

tan — Tangens

Popis

float tan ( float $arg )

Funkce tan() vrátí tangens parametru arg. Parametr arg je v radiánech.

Příklad 920. tan() - příklad

<?php

echo tan(M_PI_2); // 1

?>

Viz také atan(), sin(), cos() a deg2rad().



add a note add a note User Contributed Notes
tan
fformula at gmail dot com
10-Apr-2006 05:26
To find cotangent you can use
  tan (M_PI/2 - $alfa)

tanh> <srand
Last updated: Sat, 24 Mar 2007
 
 
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