Question about Texas Instruments TI-30XA Calculator

# Value \$25,000 at 5% interest for 4 years. I need semi annually, monthly and continuous amounts. How do I enter in ti30xa?

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• eagleone437 Feb 04, 2010

This is a algebra equation and I need to use()+yx key to get results.

• eagleone437 Feb 04, 2010

The semi annually and monthly worked great. Can you show me the keys for continuous like you did for semi annually under comments?

• eagleone437 Feb 04, 2010

I'm not doing something right. The answer is \$30,535.07 but when I enter that's not what I get.

• eagleone437 Feb 04, 2010

I get 39722.17374. My e key is the ex key is that the one I use? I don't know how I am entering wrong.

• eagleone437 Feb 04, 2010

I just tried again. 25000*e^(0.05*4) I get 39722.17374. my^ key is yx.

• eagleone437 Feb 04, 2010

Still not giving me the right answer. I feel like I am missing a step from the example.

• eagleone437 Feb 04, 2010

I got it, I had to add the 2nd key. .05*4=.02 2nd e 1.221402758 * 25000 = 30,535.07.

• eagleone437 Feb 04, 2010

I will and thank you so much.

• eagleone437 Feb 04, 2010

Very helpful! I got exactly what I needed.

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• Master

Annually = P × (1 + r) = (annual compounding)
Semi Annually = P (1 + r/2)^t*2 = (quarterly compounding)
Quarterly = P (1 + r/4)^t*4 = (quarterly compounding)
Monthly = P (1 + r/12)^t*12 = (monthly compounding)
Continuous = Pe^(r*t) = (continuous compounding)

Where P = Principle or starting amount = \$25000
Where r = interest rate so 5% = 0.05
Where t = number of years = 4

Let me know how this works out for you.

Benjamin

Posted on Feb 04, 2010

• Benjamin Patri Feb 04, 2010

You can type it in like this 25000*(1+(r/2))^(4*2))

This is for Semi annually

• Benjamin Patri Feb 04, 2010

25000*e^(0.05*4)

That is a small e that you should find on the calculator

• Benjamin Patri Feb 04, 2010

you don't get that number on the calculator? or on the solution thing you are entering into?

I get 30535.06895, maybe you need to round to 30535.06

• Benjamin Patri Feb 04, 2010

yeah the e^x key is the right one, check () parentheses

• Benjamin Patri Feb 04, 2010

type in .05*4 then press the e button then multiply by 25000

try that

• Benjamin Patri Feb 04, 2010

On a TI-36 which is basically the same thing

I press .05
then X (times)
then 4
then = (equals)
which equals .02
then e
which equals 1.221402758
then X (times)
then = (equals)

and I get the right answer

• Benjamin Patri Feb 04, 2010

Great! Please rate this solution then for me to get credit and have a good day

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• Expert

Ok just type 25,000 x .05 then add the result to 25,000 then divide it by 48. from then you can figure it out

Posted on Feb 04, 2010

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Posted on Jan 02, 2017

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## Related Questions:

### How to Calculate NPV?

NPV stands for Net Present Value. Using this scientific calculator, you must utilize a formula to calculate net present value.

For example, if we want to find out what the net present value of \$10,000 is using a 4% annual interest rate for 10 years. In other words, what amount do we have to invest today for 10 years assuming we get a 4% annual interest rate.

NPV=10,000(1+0.04)^-10

To do the exponent, use the ^ key.

Good luck.

Paul

Feb 26, 2016 | Texas Instruments Ti 30x Iis Scientific...

### I want to invest R10000 in a bank investing at 14% compounded twice a year

Invest R10000 in a bank investing at 14% compounded twice a year.

A = P(1+i)^n, where A is the amount, P is the principal or initial investment, i is the interest rate per period, and n is the number of periods.

If the annual rate is 14%, the semi-annual rate is 7%. One year is now composed of 2 6-month periods.

So after one year, we have A = 10 000 (1.07)^2 or 11,449.

Good luck,

Paul

Nov 19, 2013 | Sharp EL-738 Scientific Calculator

### 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
----- 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.

411@themathcheetah.com for more questions.
TEXAS INSTRUMENTS = 1-800-TI-CARES...they are friendly.

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

### 45,000 to invest.want to have 250,000 in 20 years. what rate of interest do i need if its compounding monthly?

4 5 0 0 0 +/- PV (investment amount, negative because you're paying it out)
2 5 0 0 0 0 FV (desired amount, positive because you're receiving it)
2 0 SHIFT xP/YR (20 years)
I/YR (calculate annual interest rate)

Jan 23, 2011 | HP 10bII 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

### Future &present value

That depends on the interest rate.

2nd [CLR TVM] (clear previous data)
5 0 0 0 PMT (monthly payment)
2 0 2nd [*P/Y] N (20 years of monthly payments)
annual interest rate I/Y (annual interest rate)
CPT PV (compute present value)

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

### I have a TI30XA and i'm trying to use it to find the balance of a compound interest problem. the problem is \$5000 is invested at an annual interest rate of 6% for 10 years how can i use the calcuator find...

A = P(1 + r/q)nq is the formula you use. first write it all out, where P is the principle or \$5000, r is the rate of 6%, q is the times per year so it would be 12 if done monthly, and n is how many years which would be 10. hope this helps.

Apr 28, 2010 | Texas Instruments BA-II Plus Calculator

### BAII Plus TVM Applications

2nd [CLR TVM] (clears any previous results)

4 I/Y (4% interest rate)

1 2 0 0 +/- (\$1200 monthly payment, negative because you're paying out the amount)

2 5 0 0 0 FV (desired value, positive because you'll be receiving the amount)

CPT N (compute the number of payments)

Feb 14, 2010 | Texas Instruments BA-II Plus Calculator

### Tvm_I%

I'm going to make up an example so this is easier to answer.

Ex: You have a bond with a price of \$987, with a coupon of 1.5%, which matures in 10 years.
To do this problem:

[APPS] [1] [1]

What comes up on screen:

N=
I%=
PV=
PMT=
FV=
This is all the stuff that you really care about.

Now, add in the info you know from the equation. Put in a 0 if you don't know the number for that part.

This is what it should look like:
N=10
I%=0
PV=-987
PMT=15
FV=1000

Now, cursor back up to the I%=0 part.
Highlight the '0' that you had in there from before.
[ALPHA] [ENTER] ----> notice above the enter button it says in green lettering "solve", this is what you are trying to do.

Yay! Your caluculator has now figured out the interest rate!
it should say:
I%=1.642027191

Notes:
1. Make sure your payment is set at the end of the period (this is just the standard so you probably don't want to mess with it.) Scroll down to the PMT: END BEGIN part and make sure the END is highlighted.

2. This example used annual coupon payments. The p/y and c/y business is used for when you have semi-annual payments or semi-annual compounding (or daily, or hourly etc). You can use this feature, or you can just adjust the payment and periods
(ie: if this were a semi-annual coupon bond, the N would be 20 and the pmt would be 7.5)

Oct 25, 2008 | Texas Instruments TI-84 Plus Calculator

### Invalid computation

Hmmm, I don't think the problem is with your calculator. I'd be checking the accounting question again as I don't think you've got your annuity question structured right.

4 Year Annuity
14% Annual Interest Rate
Your contributing \$4,000 per year over the next 4 years
and you already know the future value is \$50,069?

You'd have to make annual payments of \$11,878.93 (4 of them) at that annual interest rate to get to a future value of \$50,069 (which has a present value of \$43,632.24).

Are you sure that the FV isn't the trade in value at the end of the 4 years?

Oct 05, 2007 | Sharp SHREL738 Calculator

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