# Dirac delta function

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## Dirac delta function

[di′rak ′del·tə ‚fəŋk·shən]
(mathematics)
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T] is narrow compared with the slit width or ideally close to a Dirac delta function, then the SRF approximates to a triangle function with a bandwidth (FWHM, Full Width at Half Maximum) equivalent to a in image plane coordinate.
where [delta](x) is the Dirac delta function, and f is a given function such that [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII] for some positive constant c.
5d(f), where we have used the even property of Dirac delta function.
Dirac delta function [delta](x - L) was introduced to describe a distribution of externally applied torque.
x] is the floor operator, [delta](x) is Dirac delta function and u(x) is the unit step function.
The aforementioned papers implied that there are some sources which may be formally expressed as a Dirac delta function of a complex argument, but omitting its analysis and meaning.
The integral [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII] is intermediate quadratic approximation of the integral [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII] is the Dirac delta function, (Butkovskij, 1982).
Students should have background in complex analysis, the Fourier transform, the Dirac delta function, one-dimensional wave equations, linear algebra, random processes, and some physics.
0] is the intensity of the laser beam and [delta](t) is the Dirac delta function [10].
m] x [eta](t) is a continuous zero-mean stationary white-noise process with covariance matrix E{[eta](t)[eta](t + [tau])} = Q[delta]([tau]), where Q is the corresponding process disturbance intensity and [delta](x) is the Dirac delta function.
Since, the Dirac delta function [delta](t) is considered asa unit element for the convolution product [12], the expressions (3.
We present solutions of Burgers equation subject to an instantaneous point input, which is a Dirac delta function to represent the instant negative pressure (suction) applied to the soil around the sampler.

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