bold text
: Input "function",g
:Define g(x)=g
(creates a partition of the interval of interest and stores it as list1)
:Define g(list1)=list2

So, the above doesn't work and I think it's the function's problem rather than the list's problem. I'm looking for the output in the list editor and list1 is fine but list2 has a "data type" error.
I tried using FUNC, ENDFUNC but it won't accept the numerical variable, it needs explicit direction. I don't want to apply a function that lives within the program… I want to apply the user's own function.

Thanks for any thoughts whatsoever!

The goal: To be able to take a variable, and then return a 1 (true) or 0 (false) based on if the variable type is the type we're checking for.

Strings (Unsolved)

Strings are the main reason this problem came up at all for me, and the reason I'm making this post. I've had a couple ideas for this, but so far they all lead to errors! My first thought was to try toString(Ans)=Ans, however this returns ERROR: DATA TYPE. I've tried some other ideas, such as checking for Length(, but without the Try command, we can't handle any of these solutions properly in TI-83 Basic.

Lists (Untested)

Matrices (Untested)

Numbers (Untested)

(Here's to hoping I'm able to edit this post, because I want to just post this now during a break)

Here is the full code if you need that too.

ClrHome
Disp ""
Disp " READY, SET,"
Disp " 3"
Disp " 2"
Disp " 1"
Disp ""
For(X,1,500):End
Disp " GO!"
Disp "":Disp "":Disp ""
0→D:0→C:13→X:8→W
int((28-W-1)/2)→R
{R,R,R,R}→L₁
0→S:8→M:0→N
While D=0
Output(10,R,"]")
Output(10,R+W,"[")
Disp "":Output(2,1,C)
Output(6,X,"=V=")
Output(5,X,"O+O")
Output(4,X," 0 ")
Output(3,X,"O^O")
Output(2,X," ")
If X≥L₁(1) and X≤L₁(1)+W-2:Then
N+1→N:If N=M:Then
If R=9:Then
randInt(­1,1)→S
Else
round((R-9)/W,0)*randInt(­1,0)→S
End
0→N
End
R+S→R
seq(L₁(I),I,2,4)→L₁
R→L₁(4)
C+1→C
getKey→K
If K=24:Then
Output(3,X+2," ")
Output(4,X+2," ")
Output(5,X+2," ")
Output(6,X+2," ")
X-1+(X=1)→X:Else:If K=26
Then
Output(3,X," ")
Output(4,X," ")
Output(5,X," ")
Output(6,X," ")
X+1-(X=24)→X:End:End
Else:1→D:End
End

AsmPrgm
2114
8A3E
08AE
77
C9

When done the program, write on the homescreen- Asm(prgm{What you called it})

Then press [Alpha] 2 times.

the code looks like

For(Z,1,20,1) {Z^R}->L1(dim(L1)+1) End

how do I make it add to the list instead of replace the value? I've triedultiple ways but none have worked on my TI 84+ SE

At the top of my program I have a list:
.00024->A
There are many other items here but I only need one for my example.

Then on my 1st menu I have:
Menu("TEST","ALUM",A, and so on)
Lbl A
A->Y
GoToC

Then I have:
Lbl C
Menu("TEST 1","ALUM",L, and so on)
Lbl L
A->Z
GotoD

I want to add more options to my list so I'd like to be able to get L back so I was wondering if I could replace the "L" in my Test 1 menu with "A" like my Test menu without causing any problems?

I don't have my 84 with me or I would just make the change and try it.

Thanks.

I've been doing some TI-Basic development on TI-84+ (monochrome) and came across what seems to be a bug in the DelVar command (at least on the latest OS 2.55MP).

When deleting any list variable, it removes the last list in the list editor, even if the two lists are not related.

Here's a short example that demonstrates the bug:

SetUpEditor L₁,L₂ {0}→AA DelVar ⌊AA

When I run these commands, and then open the list editor (STAT, ENTER), I would expect to see L₁ and L₂ displayed, but only L₁ is.

It actually doesn't matter which lists you specify in SetUpEditor, or which list you create and delete, the same thing occurs.

I noticed that repeated DelVar calls do not keep removing lists from the editor, it only happens once, until the next SetUpEditor call.

Can anyone else confirm that this happens on their calculator too? I noticed it seems to have been fixed in the TI-84+ CE editions, so maybe it was discovered and patched since the latest TI-84+ OS release.

Workarounds

The two workarounds I know about so far are:

• Specify an additional column in your SetUpEditor, expecting that it the last one will likely get removed during the next DelVar

• Call SetUpEditor AFTER the DelVar if you want to ensure it is exactly as you specified, but expect that any future deletion of a list will still remove the last column

If others confirm that this indeed happens to them, I might document this in the wiki.

Cheers,
Simo

the game takes place all in the graph screen on a TI-83 plus if that helps.