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Accurately is just an ordinary financial calculator. I enjoyed using a good old Texas Instrument BA II Plus calculator when I was in school. I tried to find a financial calculator from iTunes store, but it was hard to find one that satisfies my needs (and budget). Ones that are from the authentic source (HP and TI) seem to be proven to work exactly like the hardware calculators but they were too expensive (why would you pay $15 for something that you can buy one with actual hard buttons at $25?). And the ones that were not too expensive were reported not to behave like an ordinary calculator.
In my opinion, a financial calculator should work as an ordinary calculator - plus 5 TVM buttons.
[N] [I/Y] [PV] [PMT] [FV]
I think everything else (CF, IRR, NPV, etc) is just a derivative of this time value of money calculations which can be easier calculated on a spreadsheet. This calculator still can do a lot of everyday finance calculations - from home mortgage loan amortization over 30 years to 24 month car lease program.
So, please read the user manual and TVM cheat sheets that are attached here, and I hope you feel the freedom of wielding time value of money. Essentially, this is not all that different from what Wall Street guys do.
Feb 2011
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