Acces to a list - Printable Version +- HP Forums (https://www.hpmuseum.org/forum) +-- Forum: HP Calculators (and very old HP Computers) (/forum-3.html) +--- Forum: HP Prime (/forum-5.html) +--- Thread: Acces to a list (/thread-4757.html) Acces to a list - Powersoft - 09-20-2015 06:56 PM Hi all, Need some help with my list. L1 ={{1,2,3},{4,5,6},{8,9,1},{7,6,1}} 1. How to calculate the amount of elements (4)? 2. How to access every separate element of list L1 Thanks, for any help! Cheers Jan RE: Acces to a list - Tim Wessman - 09-21-2015 12:39 AM 1. SIZE 2. L1() to access further down inside, L1(,...) Ex: L1(2,3) returns 6 in your given list. RE: Acces to a list - cyrille de brĂ©bisson - 09-21-2015 05:54 AM Hello, Var[n] refers to: if var is a list: the nth element of the list if var is a string, the nth char of the string if var is a vector, the nth element of the vector if var is a matrix, the nth line of the matrix, or if n<0, the nth column if var is an int, the nth bit of the int. This works both in RCL and STO var[n, m] refers to: if var is a list: var[m] for the nth element of the list (parameter list can be up to 16 long!) if var is a string, m chars starting at index n in the string if var is a matrix, the element at pos n,mx if var is an int, the m bit starting at pos n from the int list(0):=val: adds at the end of the list That should get you started. Cyrille