Review

Review by

Josh G

Reviewed on

20120809

This is really cool! I love being able to calculate large numbers when the rest of my math class has to use workarounds because they get overflow errors. Not only can it calculate larger numbers than the regular calculator can, but it also makes the calculations faster than the regular calculator.
One important note: it uses Reverse Polish Notation, which at first is a little awkward, but after a while you will get used to it. If you want to know how to use it without experience, Wikipedia has an excellent article on RPN. 

Review

Review by

Felix Sun

Reviewed on

20080428

There have been many reviews of this program based on its interest and uniqueness, but I would like to comment on its usefulness. Contrary to public opinion, I find Cabamap really useful, especially in a math competition. Once, my math team had to find the number of 2's in the prime factorization of 2^2007  1. This is probably possible with a lot of modular arithmatic, but we didn't even go there. Instead, we typed it in to Cabamap, and had someone hold down the over key for some time. Nine points for us!
I would recommend this program to any AMC, HMMT, ARML, or any other math contest taker, as well as anyone who wants to amuse their friends with the exact value of 7^123 + 25!. 

Review

Review by

Mr. Kimura

Reviewed on

20070812

Cabamap is a very cool app that can calculate extremely large numbers. The thing I like about this program is that it can calculate 200! and other ridiculously large calculations instantly and accurately.
A big drawback is that it doesn't support decimals. I think that because of this many people don't see a practical use for this otherwise fantastic application. If this app had decimal support I think it will be a lot more popular than it is today.
As far as I'm concerned, RPN isn't too hard to learn. It's explained quite well in the readme and when you fool around in Cabamap you eventually learn how to do it.
Overall, it's a great tool if you ever need it. And it's pretty fun (at least for me) to see your TI84+ spit out 600 digit numbers.


Review

Review by

Michael White

Reviewed on

20050228

Note! This review was written for a previous version of this file!
Â“CabamapÂ” is an application which allows you to do calculations with numbers whose lengths are theoretically only limited by the amount of RAM, so up to 24000 digits. It uses Reverse Polish Notation, which is hard at first, but I soon learned it well enough. Among the special functions you can use are: Square root, modular division, testing whether a number is prime, gcd and lcm, factorial, permutations and combinations.
Speed: It only takes about a second to find weather the number 123456789123456789 is prime. The readme has more on the speed. Overall: 9/10  Fun if you get a kick out of doing huge calculations. However, it doesn't allow operations with nonintegers, and doesn't allow you to use the calc's built in functions. 

Review

Review by

Jerry Shang

Reviewed on

20040207

Note! This review was written for a previous version of this file!
This app is what makes a TI83 Plus compatible with a TI89 in performing calculations. Though only 16K, this app can do things like 1200! that no 89 app can, and at a higher speed than 89. It uses 5 level RPN, which is very useful in calculating extremely complicated equations. If you don't download this app because you don't know RPN, learn it, it's extrememly simple. 

Review

Review by

Thomas Prescott

Reviewed on

20040206

Note! This review was written for a previous version of this file!
I know it's in Beta, but I've given it a shot.
This APP is pretty cool if you want to calculate 100! (100 factorial, or 100*99*98*...*3*2*1). I can't find any classroom use for it, I just use it to play around. I like to see how long of a number I can make using Cabamap. So far I've gotten to 3000 digits.
The biggest problem is that the APP uses RPN (Reverse Polish Notation). For a few people, this is ok. Although, for others (like me) it was a pain in the youknowwhat to use. Even so, I did learn it, you just got to think backwards. And to be fair, Cabamap is fast. On my 83SE, it took about 12 seconds to calculate 300!.
Good News: You can calculate huge numbers, or even calculate numbers that are larger than 10^14. No (noticable) bugs, pretty good for a beta APP. Fast.
Bad News: No real outside (or classroom) use. Reverse Polish Notation is hard to use.
Overall Rating: 4/5 

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