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fofolee
2019-04-21 11:50:48 +08:00
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<h1>数学函数 - cosh</h1>
<p>原型extern float cosh(float x);</p>
<p>用法:#include &lt;math.h></p>
<p>功能求x的双曲余弦值</p>
<p>说明cosh(x)=(e^x+e^(-x))/2</p>
举例:<pre><code class="language-c">
// cosh.c
#include &lt;syslib.h>
#include &lt;math.h>
main()
{
float x;
clrscr(); // clear screen
textmode(0x00); // 6 lines per LCD screen
x=PI/4.;
printf("cosh(%.4f)=%.4f\n",x,cosh(x));
getchar();
return 0;
}
</code></pre>相关函数:<a href="sinh.html">sinh</a>,<a href="tanh.html">tanh</a>
<h1>数学函数 - cosh</h1>
<p>原型extern float cosh(float x);</p>
<p>用法:#include &lt;math.h></p>
<p>功能求x的双曲余弦值</p>
<p>说明cosh(x)=(e^x+e^(-x))/2</p>
举例:<pre><code class="language-c">
// cosh.c
#include &lt;syslib.h>
#include &lt;math.h>
main()
{
float x;
clrscr(); // clear screen
textmode(0x00); // 6 lines per LCD screen
x=PI/4.;
printf("cosh(%.4f)=%.4f\n",x,cosh(x));
getchar();
return 0;
}
</code></pre>相关函数:<a href="sinh.html">sinh</a>,<a href="tanh.html">tanh</a>