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Heaviside function in matlab

  1. Sep 5, 2011 #1
    Dear Fellows
    I need to define a function "f" in matlab as
    f is a heaviside unit step function

    I did it as

    f = heaviside[abs(-4)]

    but it is not working as I required.
  2. jcsd
  3. Sep 5, 2011 #2


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    Staff Emeritus
    Science Advisor
    Gold Member

    The "heaviside" function is part of the symbolic maths toolbox and as such, requires a symbolic argument. Therefore, you need to modify your expression thus:
    Code (Text):
  4. Sep 5, 2011 #3


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    Gold Member

    If it's required you write it yourself, you're going to have to give us your code if you want troubleshooting help.
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