Question about Texas Instruments TI-84 Plus Silver Edition Graphic Calculator

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TI84. In trying to get the IRR with two yearly outflows, I get ERR:ARGUMENT. The informatin I input is as follows: IRR:(-98000,-98000,{30000},{33}) Representing two yearly outflows of 98000 and 30000 in inflows for 33 years.

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Seems crazy, but this is the second time today this question has come up.....

The TI84 won't allow two investments. It will let you do as many Cash Flows as you want, but only one investment.

The only way to work this out is to use another tool. A spreadsheet would be best, but if you don't have access to one, we can work up the equations and do it by hand, or maybe simplify it to a point that the TI can work it out in pieces.

Posted on Feb 05, 2010

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1 Answer

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1 Answer

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2 Answers

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[APPS] [1] [ENTER]

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1 Answer

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1 Answer

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Use the "FINANCE" app:

[APPS] [1] [ENTER]

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