Step Function (Not in Base Package)

Generates the step function for any real number x. Details  

	x is any real number.
	step(x) is the value of step(x) for the given value of x.

Step Function Details

The following equation defines the step function.

step(x) = 0 if x < 0 and 1 elsewhere

Note  You can define more complex functions by varying and combining the Step Function, Spike Function, and Square Function VIs, respectively.

The following illustration shows the graph for step(x) + spike(x) in the interval (–4.0, 4.0)