(computing) Being or using an internal number representation with a fixed number of decimal places (as opposed to floating-point).

(computing) A fractional-number representation with a fixed number of digits after the decimal point. Compare floating point and integer.

(computing) Pertaining to fixed point representations or operations.

plural of fixed point

(topology) A theorem which (in one of its simplest forms) states that a continuous function from an n-dimensional unit cube (in ℝⁿ) to itself has a fixed point.

(mathematics) A formula that counts the fixed points of a continuous mapping from a compact topological space X to itself by means of traces of the induced mappings on the homology groups of X.

(quantum chromodynamics) In quantum chromodynamics with massless flavours, where the number of flavours is sufficiently small (i.e. small enough to guarantee asymptotic freedom, depending on the number of colours), an interacting conformal fixed point of the renormalization group where the value of the coupling is less than one (i.e. one can perform perturbation theory in weak coupling).