Texas Instruments TI-82 STATS

Matrices 10–13
82EA17~1.DOC TI-83 international English Bob Fedorisko Revised: 10/26/05 1:31 PM Printed: 10/27/05 2:47
PM Page 13 of 16
Use dim( with ¿ to create a new matrixname of dimensions
rows × columns with
0 as each element.
{rows,columns}!
!!
!dim(matrixname)
Use dim( with ¿ to redimension an existing matrixname to
dimensions rows × columns. The elements in the old
matrixname that are within the new dimensions are not changed.
Additional created elements are zeros. Matrix elements that are
outside the new dimensions are deleted.
{rows,columns}!
!!
!dim(matrixname)
Fill(
stores value to every element in matrixname.
Fill(value,matrixname)
identity( returns the identity matrix of dimension rows ×
dimension columns.
identity(dimension)
randM(
(create random matrix) returns a rows × columns
random matrix of integers ‚
L
9 and  9. The seed value stored to
the
rand function controls the values (Chapter 2).
randM(rows,columns)
Creating a Matrix
with dim(
Redimensioning a
Matrix with dim(
Fill(
identity(
randM(