Does the BA-II Plus Burn?

[spotted cow]

I hate the BA-II Plus. The TVM and CF workings are terrrible. HP's are much easier and make more sense. Oh well, we really don't have any good options.




I think I will torch one with gasoline and see what it looks like. Anyone want to see one melted?

[rzitowsk]

I appreciate that I can do NPV and IRR calculations very easily on the BA II Plus. Same with increasing annuities. The BA II-Plus is a good complement to the BA-35, which does neither of those things.

Rob

I too prefer HP calculators to TI calculators. I've got an HP-41CV that I bought in 1983 and it still works great. It's a good question why HP calculators aren't permitted.

Maybe SOA/CAS just picked a cheap one that met the needs so they didn't have to evaluate every calculator available?

Maybe its because the permitted TI calculators aren't programmable? (The TI-30X II has a modicum of programability due to its ability to re-execute entered formulas.)

Post a picture after the burn!

[Voter]

Originally Posted by rzitowsk

I appreciate that I can do NPV and IRR calculations very easily on the BA II Plus. Same with increasing annuities. The BA II-Plus is a good complement to the BA-35, which does neither of those things.

Rob

I haven't figured out the increasing annuities on the II-Plus yet, can you explain it? Thanks.

I like it myself, but I haven't used any HP's.

[spotted cow]

Originally Posted by rzitowsk

I appreciate that I can do NPV and IRR calculations very easily on the BA II Plus. Same with increasing annuities. The BA II-Plus is a good complement to the BA-35, which does neither of those things.

Rob

Unfortuantly I can do NPV and IRR calculations much faster and with less errors on the HP.

I need to have a labotomy, then work with a BA 35 for a while, then I will like the BAII Plus!

[Summer]

Originally Posted by spotted cow

Unfortuantly I can do NPV and IRR calculations much faster and with less errors on the HP.

What are you doing to get errors on the BAII plus calculations for npv and irr...they are pretty straight forward.

[rzitowsk]

You can do increasing annuities on the BA-II plus, but it is long and it will only hold 24 payments. Key in each payment as a cash flow, and then use NPV and enter the interest rate.

Rob

[spotted cow]

Originally Posted by Summer

What are you doing to get errors on the BAII plus calculations for npv and irr...they are pretty straight forward.

For a simple example, you know the payment, n, and fv. Find i. You must enter either fv or payment as negative to have a solution for i. If you enter both as positive, or both negative, it gives "error". This does not make sense to me. Maybe I have mad cow diesese.

Also, the enter/compute, enter only, etc variables are confusing. The HP does not do this.

Also, entering data is strange. It is not all entered with the same keystrokes. Sometimes you need to scroll down when it should do it automatically.

Here's my plan for the BAII Plus (in test sequence):

1. Expose to 400F for 30 min in oven
2. Perform 2' drop test onto concrete
3. Perform "window drop" (2nd story window) onto concrete
4. Soak for 10 min in transmission fluid
5. Pour Coleman fuel on it and light it
6. Run over it with a car
7. Run over it with the lawnmower

I will take a picture after each step.

What is the cumlative probability of the unit not functioning after each step? Any guesses? My guess is that F(7)=1. I think it is safe to assume that if it fails at one step, it will not work after the next, i.e. F(x+1) is greater than or equal to F(x).