Boolean Operators

PML Customisation User Guide

PML Expressions : Boolean Operators

The Boolean, sometimes called Logical, operators have the following meanings:


Operator	Comments
EQ	TRUE if two expressions have the same value.
NE	TRUE if two expressions have different values.
LT	TRUE if the first expression is less than the second.
GT	TRUE if the first expression is greater than the second.
LE OR LEQ	TRUE if the first expression is less than or equal to the second.
GE OR GEQ	TRUE if the first expression is greater then or equal to the second.
NOT	TRUE if the expression is FALSE.
AND	TRUE if both expressions are TRUE
OR	TRUE if either or both expressions are TRUE.

Note:

The operators EQ, NE, LT, GT, LE and GE are sometimes referred to as comparator or relational operators; NOT, AND, and OR are sometimes referred to as Boolean operators. Refer to Precision of Comparisons for tolerances in comparing numbers.