CARTPOL(3C++) CARTPOL(3C++)
NAME
polar - functions for the C++ Complex Math Library
SYNOPSIS
#include <complex.h>
class complex {
public:
friend double abs(complex);
friend double arg(complex);
friend complex conj(complex);
friend double imag(complex);
friend double norm(complex);
friend complex polar(double, double = 0);
friend double real(complex);
};
DESCRIPTION
The following functions are defined for complex, where:
- d, m, and a are of type integer and
- x and y are of type complex.
d = abs(x) Returns the absolute value or magnitude of x.
d = norm(x) Returns the square of the magnitude of x. It is faster
than abs, but more likely to cause an overflow error. It
is intended for comparison of magnitudes.
d = arg(x) Returns the angle of x, measured in radians in the range
-J to J.
y = conj(x) Returns the complex conjugate of x. That is, if x is
(real, imag), then conj(x) is (real, -imag).
y = polar(m, a)
Creates a complex given a pair of polar coordinates,
magnitude m, and angle a, measured in radians.
d = real(x) Returns the real part of x.
d = imag(x) Returns the imaginary part of x.
SEE ALSO
complex(3C++), cplxerr(3C++), cplxops(3C++), cplxexp(3C++), and
cplxtrig(3C++).
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