在複數頭文件中定義了用於複數的cos()函數,此函數是cos()函數的複數版本。此函數用於計算複數z的複餘弦。此函數返回複數z的cos。
用法:
cos (z);
參數:
- z:該方法采用代表複數的強製性參數z。
返回值:此函數返回複數z的cos()。
以下示例程序旨在說明C++中的cos()函數:
計劃1:-
// C++ program to demonstrate
// example of cos() function.
#include <iostream>
#include <complex>
using namespace std;
// driver program
int main ()
{
complex<double> complexnumber (0.0, 1.0);
// use of cos() function for complex number
cout << "The cos of " << complexnumber << " is "
<< cos(complexnumber) <<endl;
return 0;
}
輸出:
The cos of (0,1) is (1.54308,-0)
計劃2:-
// C++ program to demonstrate
// example of cos() function.
#include <iostream>
#include <complex>
using namespace std;
// driver program
int main ()
{
complex<double> complexnumber (1.0, 0.0);
// use of cos() function for complex number
cout << "The cos of " << complexnumber << " is "
<< cos(complexnumber) <<endl;
return 0;
}
輸出:
The cos of (1,0) is (0.540302,-0)
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注:本文由純淨天空篩選整理自bansal_rtk_大神的英文原創作品 cos() function for complex number in C++。非經特殊聲明,原始代碼版權歸原作者所有,本譯文未經允許或授權,請勿轉載或複製。