What Does the Heaviside Step Function Formula Represent?

teng125
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f(x) = <x-a>^1 - <x-2a>^1 - a<x-3a>^0

this is a diagram of heaviside step function.does anybody has any website regarding this materials so that i can get to learn such as why is it power of one and power of zero plssss

thanx very much
 
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What does "< >" mean?? It's clearly not just like parentheses since in that case you don't have a Heaviside function.
 
Are you saying that by &lt;x-a&gt; you mean a step function which switches on at x = a (and stays so for x \geq a)?
 
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