how to use heaviside step function?

I want to plot two functions using heaviside command, but I can't find information about this on the MATLAB help option.

The command I want to use is found on this link,

 http://www.mathworks.com/help/symbolic/heaviside.html

I would like to know how to incorporate this function to my MATLAB, and also is you may, I would like to know other ways to plot a step function without using the stairs command.

Thank you for your time.

Answer 1

[Chetan Rawal]

The function you are refering to is from the Symbolic Math toolbox. You need the Symbolic Math Toolbox along with MATLAB to run it:

http://www.mathworks.com/products/symbolic/

For your question, you could simply work with numbers. eg: Following is an (almost) heaviside function plot:

   x = [1 2 3 4 4.001 5 6 7 8 9 10];

   y = [0 0 0 0 1     1 1 1 1 1 1];

   plot(x,y);

   axis([1 10 -1 2]);