Casio fx-991EX User Manual

fx-991EX Quick Start Guide44
The fx-991EX has the power to solve polynomials in the complex plane.
Press i and change the type of polynomial to
quadratic (2).
Enter the coefcients that appear in the displayed screen into
the quadratic template, and press p.
The solutions are displayed in simplied radical form including
the imaginary unit.
Press R to see the second imaginary solution.
EQUATION/FUNC

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