Rectangular function explained

The rectangular function (also known as the rectangle function, rect function, Pi function, Heaviside Pi function,^[1] gate function, unit pulse, or the normalized boxcar function) is defined as

$$\backslash operatorname\backslash left(\backslash frac\backslash right)\; =\; \backslash Pi\backslash left(\backslash frac\backslash right)\; =\backslash left\backslash$$

Notes and References

1. Web site: HeavisidePi, Wolfram Language function . Wolfram Research . 2008 . October 11, 2022.