TI -86 用户手册
184
Chapter 13: Matrices
13MATRX.DOC TI-86, Chap 13, US English Bob Fedorisko Revised: 02/13/01 2:32 PM Printed: 02/13/01 3:03 PM Page 184 of 10
13MATRX.DOC TI-86, Chap 13, US English Bob Fedorisko Revised: 02/13/01 2:32 PM Printed: 02/13/01 3:03 PM Page 184 of 10
The MATRX OPS (Operations) Menu
- ‰ )
NAMES
EDIT
MATH
OPS
CPLX
dim
Fill
ident
ref
rref
4
aug
rSwap
rAdd
multR
mRAdd
4
randM
dim
matrix
Returns the dimensions of matrix as a list
{
rows columns
}
{
rows
,
columns
}
¶
dim
matrixName
Creates a new matrixName of the specified dimensions; each
element is 0
element is 0
{
rows
,
columns
}
¶
dim
matrixName
Redimensions matrixName to the specified dimensions
Fill(
number
,
matrixName
)
Stores a real or complex number to each matrixName element
ident
dimension
Returns the square identity matrix of dimension × dimension
ref
matrix
Returns the row-echelon form of matrix
rref
matrix
Returns the reduced row-echelon form of matrix
aug(
matrixA
,
matrixB
)
Concatenates matrixA and matrixB
aug(
matrix
,
vector
)
Concatenates matrix and vector
rSwap(
matrix
,
rowA
,
rowB
)
Returns a matrix after swapping rowA and rowB of matrix
rAdd(
matrix
,
rowA
,
rowB
)
Returns matrix with (rowA+rowB) of matrix stored in rowB
multR(
number
,
matrix
,
row
)
Returns matrix with (row¹number) stored in row
mRAdd(
number
,
matrix
,
rowA
,
rowB
)
Returns matrix with ((rowA¹number)+rowB) stored in rowB
randM(
rows
,
columns
)
Creates a matrix of specified dimensions with random elements
Press
X
to enter the
¶
symbol after the close brace.
When you use
aug(
, the
number of rows in
matrixA
must equal the number of
rows in
rows in
matrixB
or the
number of elements in
vector
.
Elements of matrices created
with
with
randM(
are integers
‚L
9
and
9.