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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++).
© 2004 The SCO Group, Inc. All rights reserved.
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