TI-83 Commands on a TI-89

[MulletRobZ]

I don't know where this should be placed, but I am curious about some things on my TI-89 graphing calculator. There are three functions which I want to use which can be done on a TI-83, but I don't know how it's done. Here they are with the way it's typed on a TI-83:

Random Integer: RandInt(1,6,50) -> Generates 50 integers from 1 to 6.

Random Binary: RandBin(3,.125,60) -> Generates 60 integers from 1 to 3 with a specified probability (0.125).

BinomPDF: binompdf(14,0.5,{0,1,2,3,4,5,6,7,8,9,10,11,12,13,14}) -> Lists all the probabilities for certain devices.

I know I can generate single random numbers using Rand or RandNorm on the TI-89, but I'm not sure how those three above functions can be done on it with the multiple probabilities. Any information would be nice.

Feel free to discuss any other TI Graphing Calculators here. :)

[Evil Dragon]

Why don't you just write your own function?

randint(x,y,z)
Prgm
Local c
0 -> c
Lbl x
If c < z Then
rand((y-x+1)+(x-1) -> list[c]
c+1 -> c
Goto x
EndIf
list
EndPrgm

If I knew what devices were, or how that probability thing is calulated I would make on for them too....

While one the topic of calulators.... 89's rule! :D

[MulletRobZ]

I get an error saying Undefined Variable. I think the -> has something to do with it.

[Evil Dragon]

Lol... duh! You don't actually put a '-' and a '>'... You have to use store.... Look at your ti-89... See the on button? Look at the button right above that. Press it. You get a little arrow. That's what the -> represents. :p

Btw - this program outputs the list of integers to a variable called 'list'. It doesn't actually say them. So you have to go into that variable to look at them.

[MulletRobZ]

Dumb me! I happened to use the Catalog function and accessed the Flash Apps section. The BinomPDF, RandINT, and RandBIN functions are all there! Here's how it should be typed for all of them:

TIStat.binompdf(number,percentage,{range})

TIStat.randBin(sample size,percentage,number of samples)

TIStat.randInt(low number,high number,numbers to generate)