📅 最后修改于: 2020-10-22 05:47:05 🧑 作者: Mango
C编程使我们能够通过定义在函数中执行数学运算
math.h头文件中有多种方法。下面给出了math.h头文件的常用功能。
| No. | Function | Description |
|---|---|---|
| 1) | ceil(number) | rounds up the given number. It returns the integer value which is greater than or equal to given number. |
| 2) | floor(number) | rounds down the given number. It returns the integer value which is less than or equal to given number. |
| 3) | sqrt(number) | returns the square root of given number. |
| 4) | pow(base, exponent) | returns the power of given number. |
| 5) | abs(number) | returns the absolute value of given number. |
让我们看一下math.h头文件中找到的数学函数的简单示例。
#include
#include
int main(){
printf("\n%f",ceil(3.6));
printf("\n%f",ceil(3.3));
printf("\n%f",floor(3.6));
printf("\n%f",floor(3.2));
printf("\n%f",sqrt(16));
printf("\n%f",sqrt(7));
printf("\n%f",pow(2,4));
printf("\n%f",pow(3,3));
printf("\n%d",abs(-12));
return 0;
}
输出：
4.000000
4.000000
3.000000
3.000000
4.000000
2.645751
16.000000
27.000000
12