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Unformatted text preview: 1 ) ( = + dx x (c) ) ( ) ( x x x x = (d) ) ( ) ( ) ( x f dx dx x x d x f = + There are many examples you can write an explicit mathematical expression for Dirac delta function. Show that the following expression satisfies the above definition of ( x ). (e) 2 2 2 / 2 1 lim ) ( a x a e a x > = (f) + = dk e x x ik 2 1 ) ( (Hint: use Plancherels theorem) 1...
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- Fall '08