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Simple TI-89 Program

adytumadytum Registered User regular
edited September 2010 in Help / Advice Forum
It's been a few years since I had to write a TI-89 program. While I used to be a wiz, I have completely forgotten how to enter even basic commands. Online guides are extremely complicated for what I need to do, and I don't have the time / energy to digest one.

I need to write a simple program to compute a compound annual growth rate.

There are three variables: Start Value, End Value, # of Years. All 3 are user defined.

The formula is

CAGR = [(End Value / Start Value) ^ (1 / # of Years)] - 1

Any help or input would be appreciated.

etxvv5.jpg
adytum on

Posts

  • mightyjongyomightyjongyo Registered User regular
    edited September 2010
    Prompt var1, var2, var3
    Disp <equation using vars>

    edit: actually that's for the TI-83, sorry. Might still help though!

    mightyjongyo on
  • adytumadytum Registered User regular
    edited September 2010
    I've kinda kludged it together, except that instead of outputting the answer it outputs the entire equation.

    format is basically [(y/x)^(1/z)]-1 -> t
    disp t

    Frustrating.

    adytum on
    etxvv5.jpg
  • mightyjongyomightyjongyo Registered User regular
    edited September 2010
    try

    disp ((y/x)^(1/z))-1

    instead.

    mightyjongyo on
  • PailryderPailryder Registered User regular
    edited September 2010
    Pailryder on
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