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Messages - Xeda112358
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3931
« on: February 25, 2011, 01:23:14 am »
Three exactly. I do not believe there are more than 3 with those strictures.
3932
« on: February 25, 2011, 01:21:37 am »
So is there a download here? (and yeah, that can be a little troublesome)
3933
« on: February 24, 2011, 11:49:25 pm »
Yes, there is some code for sound that happens to be command 44 (PlayData)  It isn't much, but it could be interesting for a Guitar Hero-esque game  In fact, I was working on a game like that using BatLib and it is forcing me to add more commands and routines. On the plus side, the program is currently much too fast to play, so I have some room to add features. Also, I noticed a bug in command 38 (SubList) that I forgot to keep fixed. I fixed it in a beta version, but for some reason I never saved the fix.
3934
« on: February 24, 2011, 11:44:38 pm »
For raising to the imaginary power, you must work with positive real numbers (numbers that work with the natural log). If you want to use negatives to an imaginary power, you have to some even more advanced math playing so pretty much: x i=cos(ln(x))+i*sin(ln(x))
3935
« on: February 24, 2011, 11:40:09 pm »
BatLib (App)http://www.omnimaga.org/index.php?action=downloads;sa=view;down=596This APP is designed to aid BASIC programs by providing advanced control of the calculator as well as new functions that the OS does not provide. It handles sprites, memory editing, fontsets, reading from the archive, data manipulations, drawing,sound, and other random or useful functions.
3936
« on: February 24, 2011, 11:31:00 pm »
http://ourl.ca/8834That's all I gotta say. Not a virus but it would be great if it was named Mario.
3937
« on: February 24, 2011, 10:59:46 pm »
* Xeda112358 would use AsmPrgmEF104518FB ...
3938
« on: February 24, 2011, 10:47:23 pm »
Ah, sorry I forgot a few things... While I was taking the Putnam exam I decided to prove that all numbers greater than two were part of a Pythagorean triple. To prove it I came up with an equation that given the length of one leg would return a length of another leg and then I made another that returned a possible length for the hypotenuse.
So what I meant to ask was if there was a list of all numbers that are the leg lengths of three Pythagorean. Here are the equations I came up with:
8b=(3a2-6)-(-1)a(a2+2)
8c=(3a2+6)-(-1)a(a2-2)
EDIT: Here are the ones I came up with on the Putnam:
Even values of 'a'
b=a2/4-1
c=a2/4+1
Odd values of 'a'
b=(a2-1)/2
c=(a2+1)/2
3939
« on: February 24, 2011, 04:42:23 pm »
Does anybody know where I can find a list of all numbers that are part of three pythagorean triples? My poor calculator found 24 and 840 but it didn't find any others (even at around 10000). I will probably end up trying to create an equation for that, but I want to make sure it isn't just a simple rounding error that is causing me to miss other such numbers.
3940
« on: February 24, 2011, 04:30:26 pm »
Out of randomness, I created a routine that is like rFindSym except the name is in the register BC instead of in OP1 >_> It returns the same results, too
I wonder why TI didn't do that. It wouldn't support named lists, though, right?
Right, but neither does rFindSym, unfortunately 
3941
« on: February 24, 2011, 04:25:59 pm »
Didn't know that. I used to set it up to check for both cases... This'll save some bytes 
It is a very useful trick that I love taking advantage of  As another trick, rFindSym will not find programs or other named vars, but it doesn't need the type byte Out of randomness, I created a routine that is like rFindSym except the name is in the register BC instead of in OP1 >_> It returns the same results, too
3942
« on: February 24, 2011, 03:46:39 pm »
Hehe, that is CheckFindSym doing the work there. bcall(_CheckFindSym) lets you interchange programs/protected, lists/complex lists, equ/new equ, and real/complex. So if you search for the complex list "L1" you can use either 01 or 0D as the type byte
3943
« on: February 24, 2011, 03:35:53 pm »
Not on the calc... that little L thingy is EB, but CheckFindSym does not read that as 5Dh, unfortunately, so you have to convert it in case like these. Whenever I copy a user string to OP1 as a name of a var, I have code that checks that byte and converts it if it is EB to 5D.
3944
« on: February 24, 2011, 11:52:53 am »
Think about how you would do something like raising something to an imaginary power You can set up ratios and stuff and do more stuff and stuff. Also, e^(ix)=cos(x)+isin(x), so 3^i would be cos(ln(3))+isin(ln(3)) EDIT: so you can say with that the idea that e^(i2pi)-1=0 (that is i times 2 times pi)
3945
« on: February 24, 2011, 11:45:33 am »
As a note, if you are going to be playing around by switching variable types, some types are not compatible. For example, you can change that 05 you were talking about to a 15 to make it an appvar, but you should not change that to a 00, for example.
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