Dim?

[JapanLover]

This might sound stupid but what does the dim command do and how and where do you use it?

[Spyderbyte]

You use it with matricies/lists.

3->dim(L1

L1 will now have three spaces {0,0,0} (Or the first three elements you had in it before {6,5,4,3,2,1} would become {6,5,4} and {1,2} would become {1,2,0}

dim(L1->A

A will have the number of spaces in L1

{2,3}->dim([A]

Matrix A will now be [[0,0,0] (All of the number stuff still applies)
[0,0,0]]

And finally. dim([A]->L1

L1 contains the number of rows and columns.

You can find another explaination in the Matrix and List chapters in your manual. :D

Hope this helps!

Spyderbyte

[JapanLover]

Thanks A lot

[Tyler]

You can also use it to check if there is any data is a list already without overwriting it! Example, if list1 had the data (0,0,0,1), Just use the 4->dim(list1 and it won't overwrite the data, and create the list if it is already not made!

Hope this helps, Tyler