Question about Texas Instruments BA-II Plus Calculator

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My TI BA II Plus is returning incorrect answers for TVM problems... Is this common and can it be fixed?

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  • kakima Oct 05, 2010

    I'd check the data and settings first. Make sure you have the begin/end setting correct, as well as the payments/year.

    Can you post a sample problem, along with your answer and the correct answer?

  • Anuj Kundarap
    Anuj Kundarap Nov 30, 2013

    Payments/Year setting solved this issue for me! Thanks!



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It's more common that one of the settings is not correct. Check the BEGIN/END setting, the number of payments per year, and the number of compounding periods per year.

If you still have problems, please give an example of a TVM problem, with your results and the correct result. Simply saying "incorrect results" doesn't let anyone help you.

Posted on Feb 26, 2011


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FV wrong answers

Were you also clearing the financial memory with 2nd [CLR TVM], or just the storage memory? If you don't, it's going to keep using whatever value you last used for PMT.

Mar 01, 2014 | Texas Instruments BA-II Plus Calculator

1 Answer

My TI BA II Plus is returning incorrect answers for TVM problems... Is this common and can it be fixed?

Let's see, 10% interest per year on $100 for one month. That's 10/12 of a percent interest on $100 is $0.83, added to $100 is $100.83 (with a bunch more 3s at the end). Clearly this is the correct answer.

What answer are you expecting? The future value at the end of one year instead of one month?

Nov 30, 2013 | Texas Instruments BA-II Plus Calculator

1 Answer

My BA II plus professional showing wrong answer while computing "N" during TVM calculation

Make sure you have P/Y set to 1 and BGN/END set to END. With those settings, pressing 9 I/Y 9 2 0 FV 1 0 0 +/- PMT CPT N should produce 7.00 .

Aug 25, 2012 | Texas Instruments BA-II Plus Pro...

1 Answer

I would like some help in solving some TVM problems using the BA II Plus calculator. i.e. How to solve: I invested a lump sum of $2400 in an investment that returns 6% annually. How much will the...

2nd [CLR TVM] (clear TVM registers)

2 4 0 0 +/- PV ($2400 initial investment, negative because you're paying it out)

6 I/Y (6% annual interest)

1 N (one year)

CPT FV (compute future value, see 2544.00, the value after one year)

5 N (five years)

CPT FV (see 3211.74, the value after five years)

1 0 N (ten years)

CPT FV (see 4298.03, the value after ten years)

Feb 19, 2011 | Texas Instruments BA II PLUS Financial...

1 Answer

I would like step by step instructions on how to solve a simple TVM equation. i.e. I invest a lump sume of $2400 in an investment that returns 6% annually. How much will the investment be worth after ...

GOOD QUESTION, Patweetyp...

I've got you covered.

Seeing how it's been three weeks since you posted this there's a chance you've already gotten your answer, but let me go ahead solve this for those out there who may have had the same problem.

Background: There are FIVE TVM Keys; and as you would assume, you MUST input FOUR of them in order for the BA II Plus to solve for the fifth. Now let's get down to business.

1. Hit CLR TVM. [This is just a cleanup maneuver]
1a. Hit ENTER [yes, BA II Plus always needs to be told to store the value, ALWAYS]
2. Type in -2400
3. Hit PV [Since you are investing money at time 0, your present value is negative 2400]
3a. Hit ENTER
4. Type 6
5. Hit I/Y [Your annually compounded interest rate is 6 percent]
5a. Hit ENTER
6. Type 0
7. Hit PMT [you do not have any recurring deposits*]
7a. Hit ENTER
8. Type 1
9. Hit N [there is one year until expiration/liquidation/termination]
9a. Hit ENTER
10. Hit CPT
11. Hit FV [this is your ANSWER = 2544]
----- From here, all you would need to do is change N in order to get your other answers (5 years, 10 years, etc) ----

*If your calculation does not require a recurring payment then you really just have a basic equation of value which would be solved faster by hand. (IE, 2400*(1.06)^1=FV=2544).

You'll notice that I underlined "annually compounded" as well as "one year". The reason for this is because you ALWAYS need your interest term to match your time interval. For instance, if you had monthly payments of which you wanted the year-end total you would need a monthly effective interest rate, and N would be 12.

Okay, I hope that helped. The BAII Plus is the best calculator for time-value-money calculations I've come across. When things get more advanced, you will start using the amortization table which cannot be found in any other TI Calculator (from what I know). TVM is perfect for annuities, mortgages, loans, bonds, and more. for more questions.
TEXAS INSTRUMENTS = 1-800-TI-CARES...they are friendly.

Feb 19, 2011 | Texas Instruments BA-II Plus Calculator

1 Answer

My TI BA ii plus calculator is calculating the incorrect answer for a TVM problem. What is wrong?

Before each calculation of a TVM problem you must fully clear the calculator ... Press [2ND] [CPT] [2ND] [FV]

Best of luck

Mar 12, 2010 | Texas Instruments BA-II Plus Calculator

1 Answer

Incorrect mortgage payments

clear your memory by hitting <2nd> then <FV>. It will clear out the memory of any values that may be stuck which will return incorrect answers

Aug 26, 2009 | Texas Instruments BA-II Plus Calculator

1 Answer

No decimal display on TI BA-II calculator

Your BA II PLUS stores numeric values internally to an accuracy of 13 digits. However, the numbers it displays depends on the number of decimal places to which you have it set (choice of 0–9 or floating decimal). To set the number of decimal places displayed to three: hit [2ND][FORMAT][3][ENTER]This setting also continues indefinitely (even though the calculator is turned off and on) until it is changed.

Jun 03, 2009 | Texas Instruments BA-II Plus Calculator

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