Mathematical series | Abstract algebra | Polynomials

Indeterminate (variable)

In mathematics, particularly in formal algebra, an indeterminate is a symbol that is treated as a variable, but does not stand for anything else except itself. It may be used as a placeholder in objects such as polynomials and formal power series. In particular: * It does not designate a constant or a parameter of the problem. * It is not an unknown that could be solved for. * It is not a variable designating a function argument, or a variable being summed or integrated over. * It is not any type of bound variable. * It is just a symbol used in an entirely formal way. When used as placeholders, a common operation is to substitute mathematical expressions (of an appropriate type) for the indeterminates. By a common abuse of language, mathematical texts may not clearly distinguish indeterminates from ordinary variables. (Wikipedia).

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Related pages

Indeterminate form | Formal power series | Coefficient | Summation | Parameter | Polynomial | Algebra | Polynomial ring | Mathematical structure | Variable (mathematics) | Indeterminate equation | Substitution (algebra) | Mathematics | Field (mathematics) | Argument of a function | Power series | Free algebra | Integral | Abstract algebra | Constant (mathematics) | Modular arithmetic | Indeterminate system | Commutative ring