Chapter 8: Matrix Features

PROCEDURE

 

 

Select a matrix

1.

Press @mto enter

to edit

 

the MATRIX menu.

 

2.

Press Bto select EDIT

 

 

and then 1to select 1

 

 

mat A.

Define

3.

Press 3 E4 Eto

dimensions

 

define the dimensions of the

 

 

matrix (3 rows ⋅ 4 columns).

Enter the values 4. Press 3 E2 E1 E3 9 Eto enter the first row of 3x + 2y + z = 39. The cursor will automatically position itself at the begin- ning of the second row.

5.Press 2 E3 E1 E3 4 Eto enter the second row of 2x + 3y + z = 34.

6.Press 1 E2 E3

E2 6 Eto enter the third row of x + 2y + 3z = 26.

7.Press #to return to the calculation screen.

Matrix A is now set.

Solve the

8.

Press @mto display the MATRIX MENU, and press

problem

 

Dto select D MATH and then press 4to select 4

 

 

rrowEF. The reduced row

 

 

echelon form is now set, as

 

 

shown:

 

9.

Press @m, then

 

 

press Ato select NAME

 

 

and press 1to select 1

 

 

mat A. The Matrix A is now set and ready to be calculated.

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Sharp EL-9900 operation manual Select a matrix, To edit, Mat a, Define, Dimensions, Solve, Problem
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EL-9900 specifications

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