Casio fx-991EX User Manual

fx-991EX Quick Start Guide 15
Redene the matricies by pressing i1
(Dene Matrix).
Press 1(MatA) to dene Matrix A and enter the
3 x 3 coefcient matrix.
Select the number of rows, 3(Rows).
Select the number of columns, 3(Columns).
Enter the values of the coefcients, pressing p after
each one to move to the next value.
Now, enter the 3 x 1 solution matrix as Matrix B.
Press i1(Dene Matrix).
Dene Matrix B 2(MatB) as a 3 x 1, so select 3(Rows)
and 1(Columns) from the next two windows.
MATRIX

Casio fx-991EX Specifications

General

Type	Scientific
Cover	No
Form factor	Pocket
Control type	Buttons
Product color	Black, White
Battery type	LR44
Power source	Battery/Solar
Number of batteries supported	1
Digits	16 digits
Display type	LCD
Display resolution	192 x 63 pixels
Display number of lines	2 lines
Display number of characters	16
Storage media type	-
Operation	552
Conversion between	Decimal, Fraction, Percent
Convert angles from degrees to	Gradian, Radian
Random number/integer generator	Yes

Weight and Dimensions

Depth	165.5 mm
Width	77 mm
Height	11.1 mm
Weight	90 g