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Iteration Help, Solving f(x) = x if x<3 f(x) = f(x-1)+ 2f(x-2) + 3f(x-3) in an ite

R3DLIN3	1 Oct, 2008 - 04:31 PM Post #1
New D.I.C Head Joined: 8 Aug, 2007 Posts: 2 My Contributions	Hello I had a lab assignment that wanted me to solve the function f(x) = x if x<3 f(x) = f(x-1)+ 2f(x-2) + 3f(x-3) in an iteration loop using the scheme programming language. I couldn't figure it out, was just wondering if someone could show me a solution it doesn't have to be in scheme i also know c++ java and c#. I have already got a grade on the code I wrote that doesn't work correctly so this isn't cheating I simply want to know the answer. Here is my code CODE (define (fit n total1 total2 total3 progress) (if (< progress n) (if (< n 3) n (fit n (fit (- n 1) total1 total2 total3 0) (fit (- n 2) total1 total2 total3 0) (fit (- n 3) total1 total2 total3 0) (+ progress 1)) ) (+ total1 (* 2 total2) (* 3 total3)) ) )
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