TI TI-82 - Matrix Math

Matrices 10-13
8210MTRX.DOC TI-82, Chapter 10, English Bob Fedorisko Revised: 02/09/01 9:18 AM Printed:
02/09/01 12:38 PM Page 13 of 14
Creating a Matrix with dim
dim
(
MATRIX MATH
item
3
) is used with
¿
to create new
matrixname
of dimensions
rows
×
columns
with all elements equal to zero.
{
rows
,
columns
}
!
dim
matrixname
Redimensioning a Matrix with dim
dim
is used with
¿
to redimension existing
matrixname
to dimensions
rows
×
columns
. The elements in the old
matrixname
that are within the
new dimensions are not changed. Any additional elements that are created
are zeros.
{
rows
,
columns
}
!
dim
matrixname
Fill(
Fill(
(
MATRIX MATH
item
4
) stores
value
to every element in
matrixname
.
Fill(
value
,
matrixname
)
identity
identity
(
MATRIX MATH
item
5
) returns the identity matrix of
dimension
rows ×
dimension
columns.
identity
dimension
randM(
randM(
(create random matrix,
MATRIX MATH
item
6
) returns a
rows
×
columns
matrix of random one-digit integers (
L
9 to 9). The values
are controlled by the
rand
function.
randM(
rows
,
columns
)