fixed point noun 2adjective 2forms 1 noun2 •A fractional-number representation with a fixed number of digits after the decimal point. Compare floating point and integer. •A value which is unchanged by a function or other mapping. Formally: a value x for which f(x)=x. adjective2 •Pertaining to fixed point representations or operations. •Being or using an internal number representation with a fixed number of decimal places (as opposed to floating-point). formsfixed points