Sophie: php-manual-zh-5.2.4-1mdv2008.1 noarch

php-manual-zh-5.2.4-1mdv2008.1.noarch.rpm

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>tanh</H1
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>    (PHP 4 &#62;= 4.1.0, PHP 5)</P
>tanh&nbsp;--&nbsp;双曲正切</DIV
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>说明</H2
>float <B
CLASS="methodname"
>tanh</B
> ( float arg )<BR
></BR
><P
>&#13;     返回 <CODE
CLASS="parameter"
>arg</CODE
> 的双曲正切值，定义为
     <TT
CLASS="literal"
>sinh(arg)/cosh(arg)</TT
>。
    </P
><P
>&#13;     参见：
     <A
HREF="function.tan.html"
><B
CLASS="function"
>tan()</B
></A
>、
     <A
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><B
CLASS="function"
>atanh()</B
></A
>、
     <A
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><B
CLASS="function"
>sin()</B
></A
>和
     <A
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><B
CLASS="function"
>cos()</B
></A
>。
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