cbrt()
函数cbrt()函数是cmath标头的库函数,用于查找给定数字的立方根,它接受数字并返回立方根。
cbrt()
函数语法:
cbrt(x);
参数: x –要计算其立方根的数字。
返回值: double-返回double值,它是给定数字x的立方根。
示例
Input: int x = 2; Function call: cbrt(x); Output: 1.25992
cbrt()
函数示例//示例 // cbrt()功能 #include <iostream> #include <cmath> using namespace std; //主代码部分 int main(){ float x; //输入值 cout<<"Enter a number: "; cin>>x; //计算平方根 float result = cbrt(x); cout<<"cubic root of "<<x<<" is = "<<result; cout<<endl; return 0; }
输出结果
First run: Enter a number: 10 cubic root of 10 is = 2.15443 Second run: Enter a number: 123.45 cubic root of 123.45 is = 4.97925 Third run: Enter a number: 0 cubic root of 0 is = 0 Fourth run: Enter a number: -1234 cubic root of -1234 is = -10.726