Casio ALGEBRA FX 2.0, Руководство пользователя

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Determinant
[OPTN] - [MAT] - [Det]
Example Obtain the determinant for the following matrix :
1 2 3
Matrix A = 4 5 6
–1 –2 0
K 2
(MAT)
d
(Det)
2
(MAT)
b
(Mat)
av
(A)
w
u
Matrix Transposition
[OPTN]
-
[MAT]
-
[Trn]
A matrix is transposed when its rows become columns and its columns become rows.
Example To transpose the following matrix :
1 2
Matrix A = 3 4
5 6
K 2
(MAT)
e
(Trn)
2
(MAT)
b
(Mat)
av
(A)
w
2-8-18
Matrix Calculations
# Determinants can be obtained only for square
matrices (same number of rows and
columns). Trying to obtain a determinant for a
matrix that is not square produces an error.
# The determinant of a 2
!
2 matrix is
calculated as shown below.
# The determinant of a 3
!
3 matrix is calculated
as shown below.
| A | =
a
11
a
12
= a
11
a
22
– a
12
a
21
a
21
a
22
= a
11
a
22
a
33
+ a
12
a
23
a
31
+ a
13
a
21
a
32
– a
11
a
23
a
32
– a
12
a
21
a
33
– a
13
a
22
a
31
a
11
a
12
a
13
a
21
a
22
a
23
a
31
a
32
a
33
| A | =