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tanh> <srand
Last updated: Fri, 20 Jun 2008

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tan

(PHP 4, PHP 5)

tan — Tangente

Description

float tan ( float $arg )

Retourne la tangente de arg (arg en radians).

Liste de paramètres

arg

L'argument à traiter, en radians

Valeurs de retour

La tangente de arg

Exemples

Exemple #1 Exemple avec tan()

<?php

echo tan(M_PI_4); // 1

?>



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: Fri, 20 Jun 2008
 
 
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