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KermMartian


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Posted: 13 Mar 2006 09:25:44 am    Post subject:

Code:
Fill(1,listname

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rivereye


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Posted: 13 Mar 2006 09:41:06 am    Post subject:
ok, it is all real variables
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KermMartian


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Posted: 13 Mar 2006 09:42:38 am    Post subject:
Oh. :S That makes it slightly more complicated. I guess the best thing there is just to 1-->Blah:1-->Etc everything.
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rivereye


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Posted: 13 Mar 2006 09:44:55 am    Post subject:
which is what I do (you act like I am stupid here)
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KermMartian


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Posted: 13 Mar 2006 10:06:08 am    Post subject:
Laughing No, I was just trying to think of an optimized way to do it. Smile
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Radical Pi


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Posted: 13 Mar 2006 05:04:39 pm    Post subject:
If only this would work:
Code:
For(A,1,10
1 -> expr(sub("BCDEFGHIJK",A,1
End

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elfprince13


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Posted: 13 Mar 2006 08:07:29 pm    Post subject:
Idea Idea Idea Idea Idea Idea



Code:

1 -> L1(expr(sub("BCDEFGHIJK",A,1


if it works Im a genius
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KermMartian


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Posted: 14 Mar 2006 09:01:29 am    Post subject:
ZOMG! I bet it would...
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elfprince13


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Posted: 14 Mar 2006 12:46:27 pm    Post subject:
now I have to test that....and I hope I get credit for thinking of it.

Ive been having fun working with expr( on my frog game
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KermMartian


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Posted: 14 Mar 2006 12:51:55 pm    Post subject:
expr( is one of the most powreful and least used of TI-BASIC commands.
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Radical Pi


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Posted: 14 Mar 2006 04:01:37 pm    Post subject:
IT WORKS!!!!! Good Idea Good Idea Good Idea Good Idea Good Idea

If dim(L1, of course...

So can you give an example of how to use it? I'm curious about it's potential...
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KermMartian


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Posted: 14 Mar 2006 04:04:03 pm    Post subject:
How does that work exactly?
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elfprince13


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Posted: 14 Mar 2006 04:07:30 pm    Post subject:
1 -> L1(expr(sub("BCDEFGHIJK",A,1


first, sub picks out the variable you wish to use based on the value of A.
Then expr( evaluates the substring to find the index in the list that you will store too.
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Radical Pi


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Posted: 14 Mar 2006 04:52:46 pm    Post subject:
I still don't see how it saves space. Razz
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KermMartian


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Posted: 14 Mar 2006 07:27:34 pm    Post subject:
Wouldn't that be like
1-->L1(B
1-->L1(C

instead of
1-->B
1-->C?
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elfprince13


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Posted: 14 Mar 2006 10:00:41 pm    Post subject:
no, because it allows you to choose which variable to use to store to based on A instead of brute forcing it with If statements.
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KermMartian


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Posted: 15 Mar 2006 09:41:36 am    Post subject:
I still don't quite see that, but I'll take your word for it. Smile
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elfprince13


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Posted: 15 Mar 2006 09:57:09 am    Post subject:
you have a bunch of variables that contain list indices. You want to pick which variable to use based on the value of A.

you could either do this:


Code:

1 -> L1(expr(sub("BCDEFGHIJK",A,1


of


Code:

If A = 1
1->L1(B
If A = 2
1->L1(C
If A = 3
1->L1(D
If A = 4
1->L1(E
If A = 5
1->L1(F
If A = 6
1->L1(G
If A = 7
1->L1(H
If A = 8
1->L1(I
If A = 9
1->L1(J
If A = 10
1->L1(K


now do you see the space it saves?
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KermMartian


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Posted: 15 Mar 2006 10:01:16 am    Post subject:
That's what I thought it did. Fair enough. But I thought we were looking for something to do:
1-->A
1-->B
1-->C....
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elfprince13


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Posted: 15 Mar 2006 12:42:21 pm    Post subject:
right. but if at the start of the program you do:

Code:

10->dim(L1
1->A
2->B
3->C
4->D
5->E
6->F
7->G
8->H
9->I
10->J


you're set Very Happy
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