Sharp EL9900C EL-9900C - Page 134
Normal Matrix Operations
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Chapter 8: Matrix Features 3. Normal Matrix Operations Many calculations can be made between a matrix and a real number or between matrices. Examples of each calculation are as follows: Matrix + Matrix Matrix - Matrix To add or subtract matrices, the dimensions must be the same. Example 1. Press # C. 2. Press @ m A 1 + @ m A 2 3. Press E. Matrix × Matrix To multiply two matrices, the column dimension of the first matrix must match the row dimension of the second matrix. Example 1. Press # C. 2. Press @ m A 1 | @ m A 2 3. Press E. Square of Matrix To obtain the square of a matirx: Example 1. Press # C. 2. Press @ m A 1 y 3. Press E. 124
124
Chapter 8: Matrix Features
3. Normal Matrix Operations
Many calculations can be made between a matrix and a real number or between
matrices.
Examples of each calculation are as follows:
To add or subtract matrices, the dimensions must be the same.
Example
1. Press
#
C
.
2. Press
@
m
A
1
+
@
m
A
2
3. Press
E
.
To multiply two matrices, the column dimension of the first matrix
must match the row dimension of the second matrix.
Example
1. Press
#
C
.
2. Press
@
m
A
1
|
@
m
A
2
3. Press
E
.
To obtain the square of a matirx:
Example
1. Press
#
C
.
2. Press
@
m
A
1
y
3. Press
E
.
Matrix
+
Matrix
Matrix
–
Matrix
Matrix
×
Matrix
Square of
Matrix