93
• The two matrices must have the same dimensions in order to be added or
subtracted. An error occurs if you try to add or subtract matrices of different
dimensions.
• For multiplication, the number of columns in Matrix 1 must match the number of
rows in Matrix 2. Otherwise, an error occurs.
• You can use an identity matrix in place of Matrix 1 or Matrix 2 in the matrix
arithmetic format. Use the matrix command menu’s Identity command (
1
)
to input the identity matrix.
Example 3
To multiply Matrix A (from Example 1) by a 2
!
2 identity matrix
1
(Mat)
a
A*
6
(
g
)
1
(Iden)
c
w
Number of rows and columns.
k
k
k
k
k
Matrix Scalar Product
The following is the format for calculating a matrix scalar product, which multiplies
the value in each cell of the matrix by the same value.
Scalar value
Matrix
Mat A
k
w
Mat Z
MatAns
Example
Calculate the scalar product of the following matrix using a
multiplier value of 4 :
Matrix A =
1
2
3
4
e
1
(Mat)
a
A
w
k
k
k
k
k
Determinant
Matrix
Mat A
3
(Det)
w
Mat Z
MatAns
Matrix Calculations
6 - 4
Summary of Contents for CFX-9970G
Page 22: ... CFX 9970G ...
Page 452: ...435 1 2 3 4 5 Program for Circle and Tangents No 4 Step Key Operation Display ...
Page 453: ...436 Program for Circle and Tangents No 4 Step Key Operation Display 6 7 8 9 10 ...
Page 454: ...437 11 12 13 14 15 Program for Circle and Tangents No 4 Step Key Operation Display ...
Page 455: ...438 16 17 18 Program for Circle and Tangents No 4 Step Key Operation Display ...
Page 458: ...441 1 2 3 4 5 Program for Rotating a Figure No 5 Step Key Operation Display ...