CARTPOL(3C++)							 CARTPOL(3C++)

NAME    [Toc]    [Back]

     polar - functions for the C++ Complex Math	Library

SYNOPSIS    [Toc]    [Back]

     #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    [Toc]    [Back]

     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 <b>= abs(x<b>)	    Returns the	absolute value or magnitude of x.

     d <b>= norm(x<b>)    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 <b>= arg(x<b>)	    Returns the	angle of x, measured in	radians	in the range
		    -J to J.

     y <b>= conj(x<b>)    Returns the	complex	conjugate of x.	 That is, if x is
		    (real, imag), then conj(x<b>) is (real, -imag).

     y <b>= polar(m<b>, a<b>)
		    Creates a complex given a pair of polar coordinates,
		    magnitude m, and angle a, measured in radians.

     d <b>= real(x<b>)    Returns the	real part of x.

     d <b>= imag(x<b>)    Returns the	imaginary part of x.

SEE ALSO    [Toc]    [Back]

     complex(3C++), cplxerr(3C++), cplxops(3C++), cplxexp(3C++), and
     cplxtrig(3C++).


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