Boxcar Function

$\begin{figure}\begin{center}\BoxedEPSF{Boxcar.epsf scaled 600}\end{center}\end{figure}$

$\begin{displaymath} y=c[H(x-a)-H(x-b)], \end{displaymath}$

where

References

von Seggern, D. CRC Standard Curves and Surfaces. Boca Raton, FL: CRC Press, p. 324, 1993.