expressionsnumbers
expressionsnumbers is a term occasionally used in mathematical and computational discourse to denote numbers that arise by evaluating symbolic expressions rather than appearing as explicit numerals. The scope includes numeric literals (for example, 42), arithmetic expressions (such as 2+3), and more complex expressions that evaluate to a real or complex number when given appropriate input or interpretation. In this sense, an expressionsnumbers value is any expression that, under a chosen numeric interpretation, yields a numeric result.
Although not a standard mathematical concept, the term is used to discuss topics such as parsing, evaluation,
Examples of evaluation include 3+5, which yields 8; sqrt(16), yielding 4; pi*2, yielding approximately 6.283185..., and
Relation to related concepts includes numeric literals, arithmetic expressions, symbolic computation, expression trees, and evaluation strategies.
See also: numeric literal, arithmetic expression, symbolic computation, evaluation, abstract syntax tree, computer algebra system.