Kinverting A Matrix; Kdetermining The Absolute Value Of A Matrix; Vector Calculations - Casio fx-570MS User Manual

k Inverting a Matrix
You can use the procedure below to invert a square matrix.
• Example: To invert Matrix C =
(Matrix C 3 3)
(Element input)
–1
(MatC )
• The above procedure results in an error if a non-square
matrix or a matrix for which there is no inverse
(determinant = 0) is specified.
k Determining the Absolute Value of a
Matrix
You can use the procedure described below to determine
the absolute value of a matrix.
• Example: To determine the absolute value of the matrix
produced by the inversion in the previous example.
(AbsMatAns)

Vector Calculations

The procedures in this section describe how to create a
vector with a dimension up to three, and how to add, sub-
tract, and multiply vectors, and how to obtain the scalar
product, inner product, outer product, and absolute value
of a vector. You can have up to three vectors in memory at
one time.
(
[
–0.4 1 –0.8
–1.5 0.5 –1.5
–0.8 0 –0.6
A j 1
D =
3
(
[
0.4 1 0.8
1.5 0.5 1.5
0.8 0 0.6
A A A j 3
[
–3 6 –11
3 –4
4 –8 13
)
]
(Dim)
= D
6 11
= = D
6 4
A j 3
(Mat)
)
]
E-18
]
6
3 =
(C) 3
= = D
3
=
8 13
3
(C)
4
(Mat) (Ans)
VCT
=
3
=
4
= t
a =
=