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how to access individual list items from function parameter

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TripleDuck

Joined: 10 Sep 2008
Posts: 2

Posted: September 10, 2008 12:18 PM Post subject: how to access individual list items from function parameter

I'm writing a program/function and want to pass in a list, like:

Code:

myfunc([1,-8,3.4])

In the program/function, how do I access each individual element? Supposing I want to return the value of all three numbers multiplied by each other?

I've tried using standard programming access with square brackets and it didn't work..

Code:

(list)
Prgm
list[0]*list[1]*list[2]->mymult
EndPrgm

I've also tried using curly brackets and parentheses. None of these work. So, how do I access the individual elements?

Also, is there a way to obtain a count of the number of items in the list, so the program could do this for any number of items?

calc0002

Joined: 01 Oct 2008
Posts: 4

Posted: October 3, 2008 9:29 AM Post subject: Lists

Code:

(list)
Prgm
list[0]*list[1]*list[2]->mymult
EndPrgm

There's only one thing wrong with the code you have there, and that is that lists in TI-BASIC start with the index 1, not 0. So you want:

Code:

(list)
Prgm
list[1]*list[2]*list[3]->mymult
EndPrgm

If you want to have an unlimited number of elements, use the built in dim() function:

Code:

(list)
Prgm
Local i,prod
1->prod
For i,1,dim(list)
prod*list[i]->prod
EndFor
EndPrgm

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