funtc10b.dat

来自「指令字典2005里面可以方便的查找一些函数」· DAT 代码 · 共 18 行

floor

#include <stdio.h>
#include <math.h>
int main(void)
{
    double number = 123.54;
    double down, up;
    down = floor(number);
    up = ceil(number);
    printf("original number     %10.2lf
",number);
    printf("number rounded down %10.2lf
",down);
    printf("number rounded up   %10.2lf
",up);
    return 0;
}