Michael and I actually discussed Cabamap before its initial release while we were wandering around Fry's Electronics. Though I still don't have a real use for it, it's an awesome program.

wow... big numbers...

Any clue where the name "Cabamap" came from?
Great program, by the way, if not exactly useful in my everyday calculus classes :-D

It stands for "CAlculator BAsed MAthematics Platform".

I was wondering where the "A"'s came from...thought he just put one in-between each letter of the first letter of the above words.

I was wondering the same thing.

This program looks neat. It would be really helpful when doing problems that involve a lot of large numbers.

Does it do pi?

Oh wait, it's for "long integer calculations", I guese that would be a no.

Actually it very well could if you wrote the appropriate algorithm. I believe many pi computing methods use long integers for the calculations.

There's a jump table in the start of the app that can be used to call almost every routine. I haven't written the documention on this yet though.

Will you ever use floating numbers? I've had this program on my calc for about a month and half now, and I would use it much more often if it supported floating digits. (Such as the math test today, where I could have checked if 99!*100! is a square. ;)

FYI 100!*99! is a perfect square: (99!*10)^2

I knew that, but there were a few other options I had to choose from

Oh common, that's easy:
100! = 100 * 99!
So 99! * 100! = 99! * 99! * 100
That means that sqrt(99! * 100!) = sqrt(99! * 99! * 100) = 99! * sqrt(100) = 99! * 10
See, absolutely no need for Cabamap! Not to mention that Cabamap won't tell you if a number is a perfect square, Cabamap's sqrt(x) function actually performs int(sqrt(x)).

It also says that to take the AMC10, you don't need a calculator, but it is recommended. :-D I guess that prepares you for the mindset to take the next test that follows the AMC (AIME).

I just took the AMC, I made 3 BASIC programs durring the test to solve 3 of the questions. That's allowed (I hope).

I think I made 2 on the fly (AMC12)

Excuse me for asking, but what's the AMC and AIME? (What math level?)

AME 10 - Elementary Math ~ Geometry
AME 12 - Elementary Math ~ Calculus BC

AME 10 - Math, Pre-Algebra, Algebra 1, Algebra 2, Geometry.
AME 12 - Math, Pre-Algebra, Algebra 1, Algebra 2, Geometry, Trigonometry, Pre-Calculus, Calculus AB, Calculus BC.

AMC is the American Math Competition, and you take a short multiple choice test. The AMC 10 is tenth grade stuff and AMC 12 is 12th grade. But the majority of the problems are the same on both tests actually. If you do well enough, then you get invited to the AIME, American Invitational Mathematics Exam (i think thats right). That is another test and they give you 15 problems and 3 hours (i think). Then if you do well its on to the International Mathematics Olympiad.

Yes, it is allowed. The test allows you to use any calculator that's allowed for the SAT. It says nothing about writing programs, so it's fine.

I really should have written some to help me solve the problems. It REALLY would have boosted my score.

*nervous* If I filled in any of the wrong bubbles, then I don't make it to the AIME :(

Unless of course the one you wanted to fill in was the wrong one, and you accidentally filled in the right one.

99,!,100,!,*,enter,sqrt,square,-

That's how you'd do it.

I already assumed you could do it with some work-around, but I didn't exspect it to be this easy. Well, I guess this shows the power of RPN.
BTW, if you actually try that, it still only takes a couple of seconds, that's pretty amazing.

Hey! I took that math test too! And, I think I got the 19/25 that I filled in correct. I should have had 22/25, but oh well. :(

BTW, you probably shouldn't have typed that in. Here's what I did:

"Oh... perfect square... 99!100!... every number from 1 to 99 is paired, and 100 is a perfect square, so that is the answer"

I'm still a little peeved at myself for not getting all of the questions that I should. I basically ran out of time, AND I didn't see the question on the back (number 25), which wasn't really that hard at all. I definitely could have gotten that one in the amount of time that I had left. And for another, I could have written a program to solve it for me... :( I was NOT thinking that day.

On the *first* question, I converted from numerical to percentage wrong. Stupid mistake :( Oh well, it happens.

The first question on the AMC10B delt with multiplication... you must have taken the AMC10A.

the "2001+2002-2003=2000, find the 2004 number in this sequence"?
i made a program, but i messed it up, i did 2004 more, when the fist three were included, dam
oh well, i managed a 110

-jordan

Oh- that problem didn't need a calculator. Just look at the pattern:

2001, 2002, 2003, 2000, 2005, 1998...

Every other number is its own sequence and either goes up or down by two.

Yeah, on most of the problems like that the *wrong* way to do it is to add them up all the way through the long sequence. The *right* way is to find a pattern. A common way to do this is to make the numbers smaller, and it will be easier to understand.

yeah, i ended up figuring out the pattern, but i was off by 4 'sequences' becuase i thought it was 2004 *more*, not the 2004th num in the sequence

-jordan

of course, if you calculate pi, then you begin to run into memory errors and such because of the infinite variables/lists/string that would have to be set up. The same for calculationg phi or some other infinite decimal number.