Casio CFX-9850GB PLUS, Руководство пользователя

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u
To input an identity matrix
[OPTN] - [MAT] - [Iden]
Use the Identity command to create an identity matrix.
Example 2 To create a 3
×
3 identity matrix as Matrix A
K
2
(MAT)
6
(
g
)
1
(Iden)
d a 6
(
g
)
1
(Mat)
av
(A)
w
Number of rows/columns
u
To check the dimensions of a matrix
[OPTN] - [MAT] - [Dim]
Use the Dim command to check the dimensions of an existing matrix.
Example 3 To check the dimensions of Matrix A, which was input in
Example 1
K
2
(MAT)
6
(
g
)
2
(Dim)
6
(
g
)
1
(Mat)
av
(A)
w
The display shows that Matrix A consists of two rows and three columns.
Since the result of the Dim command is list type data, it is stored in ListAns memory.
You can also use {Dim} to specify the dimensions of the matrix.
Example 4 To specify dimensions of 2 rows and 3 columns for Matrix B
! *
( )
c,d ! /
( )
a
K
2
(MAT)
6
(
g
)
2
(Dim)
6
( g )
1
(Mat)
al
(B)
w
2-8-12
Matrix Calculations