Casio fx-991ES PLUS User Manual

Positive:
Negative:
Positive:
Negative:
The initial default number mode when you enter the BASE-N Mode is
decimal, which means input and calculation results use the decimal
number format.
Press one of the following keys to switch number modes: (DEC) for
decimal, (HEX) for hexadecimal, (BIN) for binary, or (OCT) for
octal.
Example 1: To enter the BASE-N Mode, switch to the binary mode, and
calculate 11
2
+ 1
2
(BASE-N)
(BIN)
11 1
Example 2: Continuing from above, switch to the hexadecimal mode and
calculate 1F
16
+ 1
16
(HEX) 1 (F) 1
Example 3: Continuing from above, switch to the octal mode and
calculate 7
8
+ 1
8
(OCT) 7 1
Note
• Use the following keys to input the letters A through F for hexadecimal values:
(A), (B), (C), (D), (E), (F).
• In the BASE-N Mode, input of fractional (decimal) values and exponents is not
supported. If a calculation result has a fractional part, it is cut off.
• The input and output ranges is 16 bits for binary values, and 32 bits for other types of•
values. The following shows details about input and output ranges.
Base-n Mode
Input/Output Ranges
Binary
0000000000000000 ≦ x ≦ 0111111111111111
1000000000000000 ≦ x ≦ 1111111111111111
Octal
00000000000 ≦ x ≦ 17777777777
20000000000 ≦ x ≦ 37777777777
56

Casio fx-991ES PLUS Specifications

General

Type	Scientific
Cover	No
Form factor	Desktop
Control type	Buttons
Product color	Gray
Digits	15 digits
Display type	Dot-matrix
Display resolution	96 x 31 pixels
Display number of lines	10 lines
Storage media type	Not available
Battery life	3 year(s)
Battery type	LR44
Power source	Battery/Solar
Number of batteries supported	1
Symbolic notation	Square root
Conversion between	Decimal, Fraction, Percent
Convert angles from degrees to	Gradian, Radian
Random number/integer generator	Yes

Weight and Dimensions

Depth	162 mm
Width	80 mm
Height	11.1 mm
Weight	95 g