'Page 264c' diaporamas de présentation

UNIT STEP FUNCTION

UNIT STEP FUNCTION. Example :. Solution:. Ex: Write the following function in terms of the unit step function. Ex 1 :. Ex 2 :. Ex 3 :. = ?. Proof: L(f(t-a)u(t-a)}=e -as F(s) (1) Let f(t-a)=g(t) then f(t)=g(t+a), put in (1) L{g(t)u(t-a)}=e -as L{g(t+a)}, change from g to f simply

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