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decbin> <cos
Last updated: Sun, 25 Nov 2007

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cosh

(PHP 4 >= 4.0.7, PHP 5)

cosh — 쌍곡선 코사인

설명

float cosh ( float $arg )

(exp(arg) + exp(-arg))/2로 정의되는, arg 의 쌍곡선 코사인을 반환합니다.

참고: cos(), acosh(), sin(), tan().



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decbin> <cos
Last updated: Sun, 25 Nov 2007
 
 
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