step function

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Related to Piecewise constant: step functions

step function

[′step ‚fəŋk·shən]
(mathematics)
A function ƒ defined on an interval [a,b ] so that [a,b ] can be partitioned into a finite number of subintervals on each of which ƒ is a constant. Also known as simple function.
More generally, a real function with finite range.
References in periodicals archive ?
This notation will be used for any piecewise constant function defined on [GAMMA].
Right piecewise constant interpolation which consists in using the original samples which leads to [a.
Similarly to the continuous time case we now have that the kernel of X(x) is piecewise constant for any conjoined basis (X, U) of ([S.
1999), the input was parameterized as a piecewise constant function with eight sections.
detail oscillation theory for second-order linear difference equations, systems, half-linear and non-linear, neutral, and delay difference equations, those with deviating arguments, and differential equations for piecewise constant arguments.
We assume that the coefficient function a is piecewise constant with respect to T, i.
Papaschinopoulos, On a class of third order delay differential equation with piecewise constant argument, Int.
This, however, is not necessary to prove that the limits of the in time piecewise constant and piecewise affine approximations coincide.
h] is the space of functions that are piecewise constant over the control volumes and zero on the boundary of the domain.
In the numerical examples considered below, we use true models with piecewise constant levels, with the conductivities bounded away from 0.
2] norms of two piecewise constant functions, one defined by the discrete values given at the centers of the original ("primal" in what follows) cells, and the other defined by the discrete values given at the vertices of the primal mesh, to which we associate cells of a dual mesh.
H] [subset] Y be the space of piecewise constant functions on the subdivision [[PI].

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