central difference

central difference

[′sen·trəl ′dif·rəns]
(mathematics)
One of a series of quantities obtained from a function whose values are known at a series of equally spaced points by repeatedly applying the central difference operator to these values; used in interpolation or numerical calculation and integration of functions.
References in periodicals archive ?
For the space grid, the central difference scheme is adopted, and for the time term, the explicit scheme is adopted.
The iterative equation for electric and magnetic fields, and specific discrete process and difference equation can be obtained by applying component forms of (1) and (5) and using central difference to perform approximate discretization [9].
There are two direct integration methods which are central difference method and Newmark method.
Finally multigrid method with fourth order compact difference scheme is compared with the standard second order central difference scheme.
The simple first order central difference version of the energy equation is expressed as the local product of the Reynolds number and the turbulent Prandtl number (RePr = Peclet number) using the effective viscosity of the central node:
After this, we use the central difference scheme for the temporal variables.
By applying the central difference scheme at n on the inverse Fourier transformation of Eq.
The central difference scheme (CDS) causes nonphysical oscillations and lacks diagonal dominance in the resulting linear system.
The central difference appears to be the NBA needs concessions more critically than the NFL," Haagen told Reuters.
That she might also be dismayed by his racial mixture could be one more reason for her outrage, but insofar as it replicates her relationship with Tobe, I think it buries the central difference between the two relationships and diminishes the overall power of the story.
Below ([MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII] denotes the central difference of g of order r,
We apply the central difference for space variable and the forward difference for time variable [3]

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