Question about Texas Instruments BA-II Plus Calculator

# Computing N in a TVM calculation (receive Error 5 message)

I was wondering if there is a way to calculate the number of time periods, N, if the PV, FV and I/Y are entered? It doesn't seem to work for me.

For e.g. I/Y = 5/12 %, PV = 35,000, FV = 100,000, PMT = 0 (not applicable)
But when I press CPT and then press N it doesn't work (it gives an Error 5 message). I even tried P/Y = 12, I/Y = 5%, PV = 35,000, FV = 100,000 and PMT = 0 (not applicable) and it still gives me an error message.

If you could help, that would be greatly appreciated.

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• ioanapopa850 Jan 19, 2009

I have the same issue when trying to calculate I/Y, when everything elese given. Same Error 5 message.
I was wondering if there is something wrong with it or it's just a wrong value somewhere in it's memory?

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Hey,
Apparently you can't have both FV and PV positive. Try the calculation with one of them being negative.

Posted on Jan 19, 2009

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Posted on Jan 02, 2017

Error 5 indicates that no solution exists. In this particular case, you're asking for the interest rate on a savings account that pays you 10,000 now and an additional 20,000 10 years later. (Or a loan where you pay 10,000 now and an additional 20,000 10 years later.)

Either PV or FV should be negative. For example, if you deposit 10,000 in a savings account and withdraw 20,000 10 years later, use -10,000 for FV.

Posted on Aug 08, 2011

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## Related Questions:

### How do i enter the pv and fv

Did you check in the manual if the calculator is able to do Time Value of Money calculations? Well it is not able to do so. Sorry.

Oct 08, 2013 | Texas Instruments TI-30 XIIS Calculator

### Calculating TVM variables I/Y & N. eg. N = 10, PV = 10,000, FV = 20,000, PMT = 0 but when I CPT I/Y I get Error 5

Error 5 indicates that no solution exists. In this particular case, you're asking for the interest rate on a savings account that pays you 10,000 now and an additional 20,000 10 years later. (Or a loan where you pay 10,000 now and an additional 20,000 10 years later.)

Either PV or FV should be negative. For example, if you deposit 10,000 in a savings account and withdraw 20,000 10 years later, use -10,000 for FV.

Aug 08, 2011 | Texas Instruments BA-II Plus Calculator

### Error 1 or error 5 while solving for TVM problems.

According to the manual, error 1 indicates "Overflow", a number whose magnitude is greater than 9.9999999999999E99. Error 5 indicates "No solution exists", for example when FV, (N*PMT), and PV all have the same sign.

If you still have trouble, please feel free to reply to this post, giving sample problems producing these errors.

Jun 25, 2011 | Texas Instruments BA-II Plus Calculator

### I am trying to find a way to use my calculator and its financial functions but i have no idea how. i need the present value of \$1 and present value of annuity of \$1

Neely Neel Neel Neelerson,

--> APPS
--> TVM

Viola. The initials TVM stand for Time-Value-Money; it's a widely used tool throughout financial mathematics. If you are looking to deal with annuities, bonds, present value equations, future value equations, or even certain stocks then you will want to use the TVM app within your TI-84.

When you go into that menu screen you will see about 10 input lines; and despite how you're being taught you'd be best off using only five (from a mathematical & conceptual standpoint). The backbone of the TVM is the time-zero equation of value. So, all you want to be touching is the N, I/Y, PV, PMT, and FV keys.

Background on TVM:
N = Number of intervals
I/Y = Effective Interest Rate Per Interval (5% is .05 but the computer wants it entered as 5.0)
PV = The Present Value
PMT = Recurring Payment (either deposit or withdrawal)
FV = Future Value

There are like 3 other inputs that I encourage you to ignore (in exchange for learning exactly what's going on within this application).

NOTE: You MUST make your effective interest term match your number of intervals. For example, an annuity with monthly payments for 5 years with a monthly effective interest rate of 2% would need an N value of 60 (which is 12 months per year times 5 years for a total of 60 months).

There's more that could be said, but I think this should help you find the PV of an annuity.

Go Bulls,

The Math Cheetah
411@themathcheetah.com

Mar 13, 2011 | Texas Instruments TI-84 Plus Calculator

### 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...

### I simply can not get the BA 11 plus to run a simple TVM calculation. Although I have the card, and feel that I am following the instructions properly, I always get error 5 code. What am I doing wrong?...

Error 5 indicates one of two conditions while doing a TVM calculation.

1) You tried to compute the interest rate when FV, PV, and PMT all have the same sign. Make sure cash inflows are positive and outflows are negative.

2) The LN input is not greater than zero during calculations.

The first is much more likely.

Jan 03, 2011 | Texas Instruments BA-II Plus Calculator

### What buttons do I push in what order to figure compound interset. if I start with\$15,000.00 at 6% interset for 25 years. I am on a texas instrument ba 2 plus

If the interest is compounded monthly:

2nd [CLR TVM] (clear any existing results)
1 5 0 0 0 _/- PV (present value, negative because you're paying it out)
6 I/Y (annual interest rate)
25 2nd [*P/Y] N (25 years)
CPT FV (compute future value, see 66,974.55)

If the interest is compounded annually:

2nd [CLR TVM] (clear any existing results)
1 5 0 0 0 _/- PV (present value, negative because you're paying it out)
6 I/Y (annual interest rate)
2nd [P/Y] 1 ENTER 2nd [QUIT] (one compounding period per year)
25 N (25 years)
CPT FV (compute future value, see 64,378.96)

Oct 26, 2010 | Texas Instruments BA-II Plus Calculator

### I am trying to calculate the number of periods - solve for the unknown number of years PV 625 interest 8% fv 1284 how do I calculate using the calculator

2nd [CLR TVM] (clear old data)
6 2 5 PV (present value)
8 I/Y (annual interest)
1 2 8 4 +/- FV (future value)
CPT N / 1 2 = (compute number of months, divide by 12 to get number of years)

Oct 15, 2010 | Texas Instruments BA-II Plus Calculator

### How long will it take wendys \$4000 investment,

Press APPS and select the Finance app. Select the TVM Solver.

Enter -4000 for PV, 0 for PMT, 6000 for FV. Be sure you use the (-) key for PV, not the - key. P/V and C/Y should both be 1 and PMT should be END.

If you want 5% annual interest compounded month, enter 5/12 for I%. If you simply want 5% annual interest, enter 5 for I%. Go to N and press ALPHA ENTER to see the number of periods (months or years according to what you entered earlier in this paragraph).

Feb 25, 2009 | Texas Instruments TI-83 Plus Calculator

### PV and FV problem, result not like in manual

You have the payments-per-year set to 12. For this pair of problems, it needs to be set to 1.
Press 2nd [P/Y] 1 ENTER.

Jun 24, 2008 | Texas Instruments BA-II Plus Calculator

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