piecewise
Adverb
Meaning
In terms or by means of pieces; a piece at a time.
(mathematics) Throughout separate parts, but not necessarily throughout the whole
Source: en.wiktionary.orgSynonyms
Examples
Basic radiosity also has trouble resolving sudden changes in visibility (e.g. hard-edged shadows) because coarse, regular discretization into piecewise constant elements corresponds to a low-pass box filter of the spatial domain.
Among other things, he showed that every piecewise continuous function is integrable.
Expressions for the polynomial pieces can be derived by means of the Cox-de Boor recursion formula de Boor, p 131. : : de Boor, p. 131 That is, is piecewise constant one or zero indicating which knot span x is in (zero if knot span j is repeated).
Conversely, given a real number, if one takes the floating point representation and considers it as an integer, one gets a piecewise linear approximation of a shifted and scaled base 2 logarithm, (hence actually ), as shown at right.
For instance, the natural cubic spline is piecewise cubic and twice continuously differentiable.
HMMs are used in speech recognition because a speech signal can be viewed as a piecewise stationary signal or a short-time stationary signal.