| A combination of letters,
numbers, and/or symbols used to represent a value of a variable.
Expressions are found and used in various programming languages,
databases, and spreadsheets. Below are some basic examples of
expressions in the Perl programming
language. $test = "example text";
In the above example, "example text" is the expression of the
$test variable.
$total = $value1 + $value2;
In the above example the total value of $value1 and $value2 is
the expression of the $total variable. In other words if $value1
and $value2 both had an expression of "1" then the $total
expression is "2".
Also see: Conditional
expression, Operand, Programming definitions,
Regular expression,
Variable
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