在複數頭文件中定義了用於複數的atan()函數,此函數是atan()函數的複數版本。此函數用於計算複數z的複數反正切,並返回複數z的反正切。
用法:
template<class T> complex<T> atan (const complex<T>& z );
參數: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的反正切。
以下示例程序旨在說明C++中的atan()函數:
示例1:
// c++ program to demonstrate
// example of atan() function.
#include <bits/stdc++.h>
using namespace std;
// driver program
int main()
{
complex<double> complexnumber(-2.0, 0.0);
// use of atan() function for complex number
cout << "The atan of "
<< complexnumber
<< " is "
<< atan(complexnumber)
<< endl;
return 0;
}
輸出:
The atan of (-2,0) is (-1.10715,0)
示例2:
// c++ program to demonstrate
// example of atan() function.
#include <bits/stdc++.h>
using namespace std;
// driver program
int main()
{
complex<double> complexnumber(0.0, 2.0);
// use of atan() function for complex number
cout << "The atan of "
<< complexnumber
<< " is "
<< atan(complexnumber)
<< endl;
return 0;
}
輸出:
The atan of (0,2) is (1.5708,0.549306)
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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 atan() 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。