Afunctional equationis any equation that specifies a function inimplicit form.Often, theequationrelates the value of a function (or functions) at some point with its values at other points. For instance, properties of functions can be determined by considering the types of functional equations they satisfy. The termfunctional equationusually refers to equations that cannot be simply reduced to algebraic equations.
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Ruchi
Askiitians Faculty