Could you please help me .. Is it possible to calculare irr with casio fx 82 ms? Thank you very much

The calculator cannot perform any calculation on complex numbers. Sorry.

try this:

Sorry, It is not possible to solve equations on the Casio FX-82 ms. Try the Casio FX-115 ES/ FX-115 ES Plus, FX-991ES/ FX-881 ES Plus C.

Reset your calculator. If you choose an Exponential display format (Scientific, Engineering, Normal1, Normal2) select more decimal digits. Your current setting seems to display no decimal digits.

hI,

hAVE YOU CHANGE THE BATTERY?

Shift LN raises e (about 2.718) to a power. Try this:
1 . 0 5 9 5 ^ 2 . 5 =

^ is the key to the left of the log key, below the big cursor pad.

At a blank screen, enter your IRR formula in terms of the variables using ALPHA and ')' for variable X. For example: -1000 200/((1 X)^1) 200/((1 X)^2) ... rest of subsequent years. Then, press CALC. It will prompt you to enter values of your variable (X in this example). Don't worry if there's already a value displayed - this is just the most recent value that has been stored as that letter. Simply enter your value (in terms of your IRR guess) and then press [=]. You will have to repeat this for each IRR guess until you reach almost ZERO.

Change Mode to Norm 2 in case of Casio fx 82/83/85/270/300/350 MS or Choose fix.

GOTO CASIO WEB SITE, COASIO USERS GROUP OR CASIO FORUM.

CASIO.COM OR CASIO.NET

This page contains 2 manuals for FX115 calculators, and while the standard seems to be MS, each manual includes several models. This should address what you need.
http://www.retrevo.com/s/Casio-fx-115MS-Calculators-review-manual/id/467ci265/t/1-2/
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