BINARY OPERATORS

+   Add

-   Subtract

*   Multiply

/   Integer Divide

Q   Real Divide

%   Logical Exclusive OR

!   Logical Inclusive OR

&   Logical AND

[   Logical LEFT SHIFT

]   Logical RIGHT SHIFT

X   Integer exponentiation

x   Real exponentiation

.   String Concatenation

       The given operation is performed on the elements
    described by the top two descriptors on the stack.
    These descriptors are replaced by a single descriptor
    defining the result.

UNARY OPERATORS

U   Unary minus

\   Logical NOT (complement)

v   Modulus


       The operation is performed on the object described by
    the descriptor on the top of the stack and that
    descriptor is replaced by a descriptor of the result.












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