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<tanMaxDB>
Last updated: Mon, 16 Jul 2012

tanh

(PHP 4 >= 4.1.0, PHP 5)

tanh -- 双曲正切

说明

float tanh ( float arg )

返回 arg 的双曲正切值,定义为 sinh(arg)/cosh(arg)

参见 tan()atanh()sin()cos()




<tanMaxDB>
 Last updated: Mon, 16 Jul 2012
 
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