<= _ _ _ LEQSIGN _ _ _ _ _ _ _ _ _ _ _ _ operator
<= is an infix binary comparison operator that returns true if its first argument is less than or equal to its second argument.
<expression> must evaluate to a number, e.g., integer, rational or floating point number.
a := 10; A := 10 if a <= 10 then true; true
The binary comparison operators can only be used for comparisons b etween numbers or variables that evaluate to numbers. The truth values returned by such a comparison can only be used inside programming constructs, such as if...then...else or repeat...until or while...do.