
Feb. 4, 2015
10:05 a.m.
On 04/02/15 06:18, Warren Weckesser wrote:
By "discrete form", do you mean discrete time (i.e. a function defined on the integers)? Then I agree, the discrete time unit step function is defined as
It is the cumulative integral of the delta function, and thus it can never obtain the value 0.5. The delta function is defined to have an integral of 0 or 1. Sturla