HPUX cplxops[3]

 CPLXOPS(3C++)                                                 CPLXOPS(3C++)

                          C++ Complex Math Library



 NAME
      complex_operators:  operators for the C++ complex math library

 SYNOPSIS
      #include <complex.h>

      class complex {

      public:
                friend complex operator+(complex, complex);
                friend complex operator-(complex);
                friend complex operator-(complex, complex);
                friend complex operator*(complex, complex);
                friend complex operator/(complex, complex);

                friend int     operator==(complex, complex);
                friend int     operator!=(complex, complex);

                void           operator+=(complex);
                void           operator-=(complex);
                void           operator*=(complex);
                void           operator/=(complex);
       };

 DESCRIPTION
      The basic arithmetic operators, comparison operators, and assignment
      operators are overloaded for complex numbers.  The operators have
      their conventional precedences.  In the following descriptions for
      complex operators,
       - x, y, and z are of type complex.

      Arithmetic operators:

      z = x + y      Returns a complex which is the arithmetic sum of
                     complex numbers x and y.

      z = -x         Returns a complex which is the arithmetic negation of
                     complex number x.

      z = x - y      Returns a complex which is the arithmetic difference of
                     complex numbers x and y.

      z = x * y      Returns a complex which is the arithmetic product of
                     complex numbers x and y.

      z = x / y      Returns a complex which is the arithmetic quotient of
                     complex numbers x and y.

      Comparison operators:





                                    - 1 -        Formatted:  August 11, 1996






 CPLXOPS(3C++)                                                 CPLXOPS(3C++)

                          C++ Complex Math Library



      x == y         Returns non-zero if complex number x is equal to
                     complex number y; returns 0 otherwise.

      x != y         Returns non-zero if complex number x is not equal to
                     complex number y; returns 0 otherwise.

      Assignment operators:

      x += y         Complex number x is assigned the value of the
                     arithmetic sum of itself and complex number y.

      x -= y         Complex number x is assigned the value of the
                     arithmetic difference of itself and complex number y.

      x *= y         Complex number x is assigned the value of the
                     arithmetic product of itself and complex number y.

      x /= y         Complex number x is assigned the value of the
                     arithmetic quotient of itself and complex number y.

 WARNING
      The assignment operators do not produce a value that can be used in an
      expression.  That is, the following construction is syntactically
      invalid,

           complex    x, y, z;
           x = ( y += z );
      whereas,

           x = ( y + z );

           x = ( y == z );
      are valid.

 SEE ALSO
      CPLX.INTRO(3C++), cartpol(3C++), cplxerr(3C++), cplxexp(3C++), and
      cplxtrig(3C++).

















                                    - 2 -        Formatted:  August 11, 1996