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In mathematics, a boxcar function is any function which is zero over the entire real line except for a single interval where it is equal to a constant, A; it is a simple step function. The boxcar function can be expressed in terms of the uniform distribution as
where f(a,b;x) is the uniform distribution of x for the interval [a, b] and is the Heaviside step function. As with most such discontinuous functions, there is a question of the value at the transition points. These values are probably best chosen for each individual application.
- Weisstein, Eric W. "Boxcar Function". MathWorld. Retrieved 13 September 2013.
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