Reverse element calling http://tibasicdev.wikidot.com/forum/t-257824/reverse-element-calling Posts in the discussion thread "Reverse element calling" - How do you call the element number/location in a column matrix by using the element itself? Mon, 20 Apr 2026 06:47:21 +0000 http://tibasicdev.wikidot.com/forum/t-257824#post-846258 Re: Reverse element calling http://tibasicdev.wikidot.com/forum/t-257824/reverse-element-calling#post-846258 Mon, 09 Aug 2010 12:51:31 +0000 Timothy Foster 197988 Ok, so my calculator is throwing this fit that it cannot use a For loop in a function.

Therefore, my question is can the TI-89 use a program as a function or define functions? For instance, if find(x,y) were a program, could you do this:

5+find(2,3)

]]> http://tibasicdev.wikidot.com/forum/t-257824#post-846241 Re: Reverse element calling http://tibasicdev.wikidot.com/forum/t-257824/reverse-element-calling#post-846241 Mon, 09 Aug 2010 12:20:26 +0000 Timothy Foster 197988 Actually, I had moved this to the 68k section since you seem to be using a TI-89 Titanium, which is a 68k calculator. Where a 68k calculator can hold strings in a matrix/list, TI-83 calculators can only hold numerical values, and differences in the command catalogs can make a difference as well.

I know very little of 68k commands, but I have an Nspire, so I might be able to find something. You might also be able to adapt Weregoose's method to your calculator.

]]> http://tibasicdev.wikidot.com/forum/t-257824#post-846062 Re: Reverse element calling http://tibasicdev.wikidot.com/forum/t-257824/reverse-element-calling#post-846062 Mon, 09 Aug 2010 05:00:40 +0000 homercimpson 536062 oops posted this in the wrong section on accident (if you know how to do this tho answer it on the ti-83 discussion board)

]]> http://tibasicdev.wikidot.com/forum/t-257824#post-845976 Reverse element calling http://tibasicdev.wikidot.com/forum/t-257824/reverse-element-calling#post-845976 Mon, 09 Aug 2010 00:44:34 +0000 homercimpson 536062 Say I have a column matrix [a,b,c…z] and it is stored in AA ([a,b,c…z]->AA). Is there a way to type in a letter such as b, and the element number/location is returned; in this case 2.

Tasically my thinking is if I can do something like this: x[2]=b or x[3]=c, is there a way to do x[b]=2 or x[c]=3?

]]>