Casio Algebra FX 2.0 User Manual page 119

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Determinant
u
Example
Obtain the determinant for the following matrix :
Matrix A =
K2(MAT)d(Det)2(MAT)b(Mat)
av(A)w
Matrix Transposition
u
A matrix is transposed when its rows become columns and its columns become rows.
Example
To transpose the following matrix :
Matrix A =
K2(MAT)e(Trn)2(MAT)b(Mat)
av(A)w
# 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.
a
a
11
12
| A | =
a
a
21
22
2-8-18
Matrix Calculations
1
2
3
4
5
6
–1 –2
0
1
2
3
4
5
6
= a
a
– a
a
11
22
12
21
19990401
# The determinant of a 3 ! 3 matrix is calculated
as shown below.
a
a
a
11
12
13
a
a
a
| A | =
21
22
23
a
a
a
31
32
33
= a
a
a
+ a
a
a
11
22
33
12
23
– a
a
a
– a
11
23
32
[OPTN]-[MAT]-[Det]
[OPTN]-[MAT]-[Trn]
+ a
a
a
31
13
21
32
a
a
– a
a
a
12
21
33
13
22
31

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