list11-4.cpp

来自「这是关于VC++中的STL容器的资料,包括了STL容器各个类之间关系以及类的说明」· C++ 代码 · 共 25 行

// Listing 11.4
// This program demonstrates how
// easy it is to construct and use
// complex numbers with the standard
// complex class.



#include <complex>
#include <iostream>

using namespace std;

void main(void)
{
    complex<double> Num1(-3,-1);
    complex<double> Num2(4,-2);
    complex<double> Num3(0,0);
    Num3 = Num1 * Num2;
    cout << " -3 - i * 4 - 2i  = " << Num3 << endl;
    complex<double> Num4(Num3.real(),Num3.imag());
    cout << "cosine of " << Num4 << " is " << cos(Num4) << endl;
}