Complex number: magnitude, squared magnitude and phase angle : complex number « Data Types « C++ Tutorial

Home
C++ Tutorial
1.Language Basics
2.Data Types
3.Operators statements
4.Array
5.Development
6.Exceptions
7.Function
8.Structure
9.Class
10.Operator Overloading
11.Pointer
12.File Stream
13.template
14.STL Introduction
15.string
16.vector
17.list
18.bitset
19.set multiset
20.valarray
21.queue stack
22.deque
23.map multimap
24.STL Algorithms Modifying sequence operations
25.STL Algorithms Non modifying sequence operations
26.STL Algorithms Binary search
27.STL Algorithms Sorting
28.STL Algorithms Merge
29.STL Algorithms Min Max
30.STL Algorithms Iterator
31.STL Algorithms Heap
32.STL Algorithms Helper
C / ANSI-C
C Tutorial
C++
Visual C++ .NET
C++ Tutorial » Data Types » complex number 
2.26.5.Complex number: magnitude, squared magnitude and phase angle
/* The following code example is taken from the book
 * "The C++ Standard Library - A Tutorial and Reference"
 * by Nicolai M. Josuttis, Addison-Wesley, 1999
 *
 * (C) Copyright Nicolai M. Josuttis 1999.
 * Permission to copy, use, modify, sell and distribute this software
 * is granted provided this copyright notice appears in all copies.
 * This software is provided "as is" without express or implied
 * warranty, and with no claim as to its suitability for any purpose.
 */
#include <iostream>
#include <complex>
using namespace std;

int main()
{
    /* complex number with real and imaginary parts
     * - real part: 4.0
     * - imaginary part: 3.0
     */
    complex<double> c1(4.0,3.0);

    cout << "c1: " << c1 << endl;

    /* create complex number from polar coordinates
     * - magnitude: 5.0
     * - phase angle: 0.75
     */
    complex<float> c2(polar(5.0,0.75));

    // print complex numbers as polar coordinates
    cout << "c1: magnitude: " << abs(c1)
         << " (squared magnitude: " << norm(c1<< ") "
         <<    " phase angle: " << arg(c1<< endl;
    cout << "c2: magnitude: " << abs(c2)
         << " (squared magnitude: " << norm(c2<< ") "
         <<    " phase angle: " << arg(c2<< endl;

}
c1: (4,3)
c1: magnitude: 5 (squared magnitude: 25)  phase angle: 0.643501
c2: magnitude: 5 (squared magnitude: 25)  phase angle: 0.75
2.26.complex number
2.26.1.Create complex numbers based on double value
2.26.2.Plus two complex numbers together
2.26.3.Complex + integer
2.26.4.Use polar to create complex number
2.26.5.Complex number: magnitude, squared magnitude and phase angle
2.26.6.Complex conjugates
2.26.7.Complex number + float number
2.26.8.print sum of two complex numbers
2.26.9.Computing an Impedance with Complex Numbers
2.26.10.The << and >> operators are overloaded relative to complex numbers.
2.26.11.Add square root of two complex numbers and print the result
www.java2java.com | Contact Us
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.