Prog : LIMIT 
Calc : TI 83
Lang : Basic
Version : 3.0
Author: Nidal Khater, King Of LebanoOOOooN

[sorry for my english]

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 yeeeeeeepppp here comes the best program for finding limits, >>LIMIT !! Now the version 3.0 find ALL ALL ALL the limits !!

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When you launch it, it ask for a function. Enter it. It will be stored into Yo so careful if you have something into that function. But generally  Nobody uses Yo. You alays use Y1,Y2.. 

Then you got the menu :

*** +oo ***  
Gives the limit of F(x) in + infinity.

*** -oo ***  
Gives the limit of F(x) in - infinity.

*** L+ ***  
Gives the limit of F(x) in a POINT (L) by superior valor(+).

*** L- ***  
Gives the limit of F(x) in a POINT (L) by inferior valor(-.

*** END ***
Quit the prog.

*** Mode *** >>>>>>>> MOST IMOPRTANT <<<<<<<<
Here you can change the settings of the prog. You can choose between( by pushing the number)

 >>> NORMAL : the best mode for almost all of the functions.

 >>> a^x in inf. : if your working with a function containing this type of expression and you want to have the +oo limit, so CHOOSE THIS MODE

 >>> a^(n/x) in L : the same thing, you MUST ACTIVATE this mode in that case.

 >>> Low grow expression in +-oo or L : well, well...i can't explain exactly (...GRR..english!!), but use it for complicated function with lots of SQUARE ROOTS and TRIGONOMETRY...

ACTUALLY, the problem is between mode 1 and 4 (cause if you are in case 2 or 3, it's easy to know if you must use them or no...if you don't, you'll have an OVERFLOW ERROR).

ALways try in mode 1...if you aren't satisfied by the answer (or got an error..."DOMAIN" or "OVEFLOW", try mode 4......it will CERTAINLY work.

Why this ? sorry, it's impossible to do other way...but, HEYY, it's not so difficult to change a mode!!


*** F(x)= ***
Re-enter the function (restart the prog , actually)


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That's all. You'll got your limit in one second!!

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BUGS :

LIMIT 1.0 could'nt calculate all limits, but LIMIT3.0 do ! Yeah, i've tried with a lot of limits , there was no ERROR. All limits were RIGHT. But always be careful and try the "low grow" Mode...
Generally, either the answer is RIGHT, either you EASILY see that it's wrong, and change the mode, either you'll got an ERROR MESSAGE, meaning CLEARLY that you've choosen the bad mode.

So you can TRUST it TOTALLY.



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Check also  LIMIT3 FR (for the frenchies...)
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Thanks to my friend ROMAIN POYE for his help across the world in saving the diaspora of the lebanese....POYE, we trust in you, you are our leader.

For any suggestion or BUGS, I'll answer with please.
nidkhat@caramail.com




