Casio CFX-9850G PLUS User manual

Binary, Octal, Decimal,
and Hexadecimal
Calculations
This calculator is capable of performing the following operations
involving different number systems.
•Number system conversion
•Arithmetic operations
•Negative values
•Bitwise operations
5-1 Before Beginning a Binary, Octal, Decimal, or
Hexadecimal Calculation with Integers
5-2 Selecting a Number System
5-3 Arithmetic Operations
5-4 Negative Values and Bitwise Operations
Chapter
5

74
5-1 Before Beginning a Binary, Octal, Decimal, or
Hexadecimal Calculation with Integers
You can use the RUN Mode and binary, octal, decimal, and hexadecimal settings
to perform calculations that involve binary, octal, decimal and hexadecimal values.
You can also convert between number systems and perform bitwise operations.
•You cannot use scientific functions in binary, octal, decimal, and hexadecimal
calculations.
•You can use only integers in binary, octal, decimal, and hexadecimal calcula-
tions, which means that fractional values are not allowed. If you input a value
that includes a decimal part, the unit automatically cuts off the decimal part.
•If you attempt to enter a value that is invalid for the number system (binary,
octal, decimal, hexadecimal) you are using, the calculator displays an error
message. The following shows the numerals that can be used in each number
system.
Binary: 0, 1
Octal: 0, 1, 2, 3, 4, 5, 6, 7
Decimal: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
Hexadecimal: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F
•The alphabetic characters used in the hexadecimal number appear differently
on the display to distinguish them from text characters.
•Negative binary, octal, and hexadecimal values are produced using the two’s
complement of the original value.
•The following are the display capacities for each of the number systems.
Number System Display Capacity
Binary 16 digits
Octal 11 digits
Decimal 10 digits
Hexadecimal 8 digits
Normal Text
Hexadecimal Values
Keys
ABCDEF
uvwxy z

75
•The following are the calculation ranges for each of the number systems.
Binary Values
Positive: 0 <x<111111111111111
Negative: 1000000000000000 <x<1111111111111111
Octal Values
Positive: 0 <x<17777777777
Negative: 20000000000 <x<37777777777
Decimal Values
Positive: 0 <x<2147483647
Negative: –2147483648 <x<–1
Hexadecimal Values
Positive: 0 <x<7FFFFFFF
Negative: 80000000 <x<FFFFFFFF
uu
uu
uTo perform a binary, octal, decimal, or hexadecimal calculation
1. In the main menu, select RUN.
2. Press !Z and then specify the defalut number system by pressing 2
(Dec), 3(Hex), 4(Bin), or 5(Oct).
3. Press Jto change to the screen for calculation input. This causes a function
menu with the following items to appear.
•{d~o}/{LOG} ... {number system specification}/{bitwise operation} menu
Before Beginning a Binary, Octal, Decimal, or Hexadecimal Calculation with Integers 5 - 1
P. 5

76
5-2 Selecting a Number System
You can specify decimal, hexadecimal, binary, or octal as the default number system
using the set up screen. After you press the function key that corresponds to the
system you want to use, press w.
uu
uu
uTo convert a displayed value from one number system to another
Example To convert 2210 (default number system) to its binary or octal
value
A!Z2(Dec)J1(d~o)1(d)
ccw
!Z4(Bin)Jw
!Z5(Oct)Jw
uu
uu
uTo specify a number system for an input value
You can specify a number system for each individual value you input. While
binary, octal, decimal, or hexadecimal is set as the default number system, press
1(d~o) to display a menu of number system symbols. Press the function key
that corresponds to the symbol you want to select and then input the value you
want.
•{d}/{h}/{b}/{o} ... {decimal}/{hexadecimal}/{binary}/{octal}
uu
uu
uTo input values of mixed number systems
Example To input 12310 or 10102, when the default number system is
hexadecimal
!Z3(Hex)J
A1(d~o)1(d)bcdw
3(b)babaw

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5-3 Arithmetic Operations
Example 1 To calculate 101112+ 110102
!Z4(Bin)J
Ababbb+
bbabaw
Example 2 To input and execute 1238×ABC16, when the default number
system is decimal or hexadecimal
!Z2(Dec)J
A1(d~o)4(o)bcd*
2(h)ABCw
!Z3(Hex)Jw
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78
5-4 Negative Values and Bitwise Operations
While binary, octal, decimal, or hexadecimal is set as the default number system,
press 2(LOG) to display a menu of negation and bitwise operators.
•{Neg} ... {negation}*1
•{Not}/{and}/{or}/{xor}/{xnor} ... {NOT}*2/{AND}/{OR}/{XOR}/{XNOR}*3
kk
kk
kNegative Values
Example To determine the negative of 1100102
!Z4(Bin)J
A2(LOG)1(Neg)
bbaabaw
kk
kk
kBitwise Operations
Example 1 To input and execute “12016 and AD16”
!Z3(Hex)J
Abca2(LOG)
3(and)ADw
Example 2 To display the result of “368or 11102” as an octal value
!Z5(Oct)JJ
Adg2(LOG)
4(or)J1(d~o)3(b)
bbbaw
Example 3 To negate 2FFFED16
!Z3(Hex)JJ
A2(LOG)2(Not)
cFFFEDw
*1two’s complement
*2one’s complement (bitwise complement)
*3bitwise AND, bitwise OR, bitwise XOR, bitwise XNOR
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