E-59
• You cannot edit the contents of a cell.
• To switch to the matrix calculation screen, press
A
.
• While the MatAns screen is on the display, you can press an
arithmetic operator key (like
+
or
-
) and use the screen contents
in a subsequent calculation, just as with Answer Memory contents.
For more information, see “Using Answer Memory to Perform a
Series of Calculations”.
k
Matrix Menu Items
The following are the menu items on the matrix menu that appears
when you press
1
4
(MATRIX).
Select this
When you want to do this:
menu item:
1
Dim
Select a matrix (MatA, MatB, MatC) and specify its
dimension
2
Data
Select a matrix (MatA, MatB, MatC) and display its
data on the matrix editor screen
3
MatA
Input “MatA”
4
MatB
Input “MatB”
5
MatC
Input “MatC”
6
MatAns
Input “MatAns”
7
det
Input the “det(” function for obtaining the determinant
8
Trn
Input the “Trn(” function for obtaining a transposed
data in Matrix
Appendix
<#096> Input MatA
=
2
1
, MatC =
1
0
–1
.
1
1
0
–1
1
<#097> Copy MatA =
2
1
to MatB and edit the contents
1
1
of MatB to MatB =
2
–1
.
–1
2
• The following examples use the matrices input in Examples <#096>
and <#097> (MatA, MatB, MatC).
<#098> MatA + MatB (Adding Two Matrices)
<#099> MatA
×
MatB, MatB
×
MatA – MatA
×
MatB (Multiplying
Two Matrices)
<#100> 3
×
MatA (Matrix Scalar Multiplication)
<#101> Obtain the determinant of Matrix A (det(MatA)).
<#102> Obtain the transposition of Matrix C (Trn(MatC)).
<#103> Obtain the inverse matrix of Matrix A (MatA
–1
).
• Use the
E
key to input “
–1
”. Note that you cannot use
6
for this input.