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fofolee
2019-04-11 22:54:02 +08:00
parent 26abb21868
commit 6ec74eefc3
14 changed files with 43 additions and 27 deletions

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<h1>数学函数 - sqrt</h1>
<h1><EFBFBD><EFBFBD>ѧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> - sqrt</h1>
<h1><EFBFBD><EFBFBD>ѧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> - sqrt</h1>
<p>原型extern float sqrt(float x);</p>
<p>用法:#include &lt;math.h></p>
<p>功能计算x的平方根。</p>
<p>说明x应大于等于零。</p>
举例:
<pre>
// sqrt.c
#include &lt;syslib.h>
#include &lt;math.h>
main()
{
clrscr(); // clear screen
textmode(0x00); // 6 lines per LCD screen
printf("sqrt(2000)=%f",sqrt(2000.0));
getchar();
return 0;
}
</pre>
相关函数:无