•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”.

kMatrix Menu Items

The following are the menu items on the matrix menu that appears when you press 14(MATRIX).

Select this

When you want to do this:

 

 

 

 

 

menu item:

 

 

 

 

 

1Dim

Select a matrix (MatA, MatB, MatC) and specify its

dimension

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2Data

Select a matrix (MatA, MatB, MatC) and display its

data on the matrix editor screen

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3MatA

Input “MatA”

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4MatB

Input “MatB”

 

 

 

 

 

 

 

 

 

 

 

 

 

5MatC

Input “MatC”

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6MatAns

Input “MatAns”

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7det

Input the “det(” function for obtaining the determinant

8Trn

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 Ekey to input “–1”. Note that you cannot use 6for this input.

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