mirror of
https://github.com/fofolee/uTools-Manuals.git
synced 2025-06-08 15:04:05 +08:00
32 lines
669 B
HTML
32 lines
669 B
HTML
<h1>数学函数 - pow</h1>
|
||
|
||
|
||
<p>原型：extern float pow(float x, float y);</p>
|
||
|
||
<p>用法：#include <math.h></p>
|
||
|
||
<p>功能：计算x的y次幂。</p>
|
||
|
||
<p>说明：x应大于零，返回幂指数的结果。</p>
|
||
|
||
举例：<pre><code class="language-c">
|
||
|
||
// pow.c
|
||
|
||
#include <syslib.h>
|
||
#include <math.h>
|
||
|
||
main()
|
||
{
|
||
clrscr(); // clear screen
|
||
textmode(0x00); // 6 lines per LCD screen
|
||
|
||
printf("4^5=%f",pow(4.,5.));
|
||
|
||
getchar();
|
||
return 0;
|
||
}
|
||
|
||
</code></pre>相关函数：<a href="pow10.html">pow10</a>
|
||
|