在这里,我们将看到remainder()
C ++方法的功能。该remainder()
函数用于计算分子/分母的浮点余数。
因此,余数(x,y)将如下所示。
remainder(x, y) = x – rquote * y
rquote是x / y的值。这四舍五入为最接近的整数值。此函数接受double,float,long double类型的两个参数,并返回相同类型的剩余部分,该部分作为参数给出。第一个参数是分子,第二个参数是分母。
#include <iostream> #include <cmath> using namespace std; main() { double x = 14.5, y = 4.1; double res = remainder(x, y); cout << "Remainder of " << x << "/" << y << " is: " << res << endl; x = -34.50; y = 4.0; res = remainder(x, y); cout << "Remainder of " << x << "/" << y << " is: " << res << endl; x = 65.23; y = 0; res = remainder(x, y); cout << "Remainder of " << x << "/" << y << " is: " << res << endl; }
输出结果
Remainder of 14.5/4.1 is: -1.9 Remainder of -34.5/4 is: 1.5 Remainder of 65.23/0 is: nan