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33 lines
798 B
HTML
33 lines
798 B
HTML
<h1>数学函数 - hypot</h1>
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<p>原型：extern float hypot(float x, float y);</p>
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<p>用法：#include <math.h></p>
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<p>功能：对于给定的直角三角形的两个直角边，求其斜边的长度。</p>
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<p>说明：返回斜边值。</p>
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举例：<pre><code class="language-c">
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// hypot.c
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#include <syslib.h>
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#include <math.h>
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main()
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{
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clrscr(); // clear screen
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textmode(0x00); // 6 lines per LCD screen
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printf("3^2+4^2=%.0f^2\n",hypot(3.,4.));
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printf("3.2^2+4.3^2=%.2f^2",hypot(x,y));
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getchar();
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return 0;
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}
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</code></pre>相关函数：<a href="frexp.html">frexp</a>,<a href="ldexp.html">ldexp</a>
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