tst_sqrt.c

来自「这是《Keil Cx51 V7.0单片机高级语言编程与uVision2应用实践》」· C语言 代码 · 共 10 行

#include <math.h>
#include <stdio.h>                   /* for printf */
void tst_sqrt (void) {
   float x;
   float y;
   x = 25.0;
   y = sqrt (x); /* y = 5 */
   printf ("SQRT(%f) = %f\n", x, y);
}