where is the Rectangle Function and is the Heaviside Step Function. An obvious generalization
used as an Apodization Function goes by the name of the Bartlett Function.
There is also a three-argument function known as the triangle function:
It follows that
See also Absolute Value, Bartlett Function, Heaviside Step Function, Ramp Function, Sgn,
© 1996-9 Eric W. Weisstein