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In programming terminology, an expression is a statement, or portion of a statement, that results in a single value. An example of an expression is 2+3, which evaluates to 5. When the Explain™ interpreter reaches an expression, the interpreter evaluates the expression term by term to arrive at the expression's value.
Expressions may be combined, e.g.:
A + B * C
A eq B or C eq D
Assignments and tests can be made with combined operations:
D = A + B * C
if (A eq B or C eq D)
Statement