My first calculator =)

*To*: mathgroup at smc.vnet.net*Subject*: [mg100999] My first calculator =)*From*: Lobotomy <labbman at gmail.com>*Date*: Fri, 19 Jun 2009 20:48:52 -0400 (EDT)

Hello. I just started to learn mathematica a few days ago. Im trying to make a calculator that can graphically represent the relationship between: savings interest time the mathematical formula im using you can see below. this is what I've written sofar... Manipulate[ **%% Here i would like to make a "ListLinePlot" using this function: (#1*(1 + #2/#3)^(#3*#4) - 1)/(#2/#3) &[d, g, f, n] then I would like to use the below controlls to manipulate the values of d,g,f and n. How is this done? I understand that there has to be some kind of list or table that contains the accumulated sum at certain times. But I have no clue how to make this list. The problem with my function is that it only calculates the correct final answer. for example "if i invest 1000=80 per month with 5% interest for 8 years, what is the accumulated sum?" GridLines -> Automatic, {{f, 1, "Frequency"}, {1 -> "Annually", 1/4 -> "Quarterly", 1/12 -> "Monthly"}}, Delimiter, {{a, 5000, "Initial Investment"}, 0, 10000000, 1000, Appearance -> {"Open", "Labeled"}}, {{d, 0, "Added Contributions/yr"}, -500000, 500000, 1000, Appearance -> {"Open", "Labeled"}}, {{g, 0.05, "Growth(%/100)"}, 0, 1, 0.05, Appearance -> {"Open", "Labeled"}}, {{n, 5, "Years"}, 1, 100, 1, Appearance -> {"Open", "Labeled"}}, ControlPlacement -> Left]