cplxops(3C++)

cplxops -- operators for the C++ complex math library

Synopsis

   #include <complex.h>
   
   class complex {
   

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

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

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


    };

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:

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.

References

complex(3C++), cartpol(3C++), complex_error(3C++), cplxexp(3C++), cplxtrig(3C++).