hypot()
函数hypot()函数是cmath标头的库函数,用于查找给定数字的斜边,接受两个数字并返回斜边的计算结果,即sqrt(x * x + y * y)。
hypot()
函数语法:
hypot(x, y);
参数: x,y –要计算的斜边数(或sqrt(x * x + y * y))
返回值: double-它返回double值,该值是表达式sqrt(x * x + y * y)的结果。
示例
Input: float x = 10.23; float y = 2.3; Function call: hypot(x, y); Output: 10.4854
hypot()
函数示例//示例 // hypot()功能 #include <iostream> #include <cmath> using namespace std; //主代码部分 int main(){ float x = 10.23; float y = 2.3; //计算斜边 float result = hypot(x, y); cout<<"hypotenuse of "<<x<<" and "<<y<<" is = "<<result; cout<<endl; //使用sqrt()功能 result = sqrt((x*x + y*y)); cout<<"hypotenuse of "<<x<<" and "<<y<<" is = "<<result; cout<<endl; return 0; }
输出结果
hypotenuse of 10.23 and 2.3 is = 10.4854 hypotenuse of 10.23 and 2.3 is = 10.4854