Sharp EL-9650, Operation Manual, Page: 77 / 373

67
MANUAL CALCULATIONS
Press
≥
to select a boolean operator (and, or, not, neg, xor, or xnor).
• For binary, octal, decimal, and hexadecimal modes
after pressing
Ï A ®
, results
executed with boolean operations using only one
number system can be converted and listed in the
remaining number systems as well.
5. Boolean Operations
In binary, octal, decimal and hexadecimal modes, calculations with boolean expres-
sions of and, or, not, xor and xnor may be used.
It is also possible to find complements (neg) to express negative values.
(1) Table of true values for boolean operations
A B
0 0
0 1
1 0
1 1
A and B
0
0
0
1
A or B
0
1
1
1
A xor B
0
1
1
0
A xnor B
1
0
0
1
A not A
0 1
1 0
4. Test Functions
Using the inequality expressions, (=,
≠
, >,
≥
, <,
≤
), value A and value B are compared,
“1” is returned for true and “0” is returned for false. Real numbers, equations or lists can
be used for value A and value B.
For matrices, only “=” and “
≠
” can be used and the dimensions of the matrices must be
the same.
Inequality expressions are selected from the [MATH][F]
menu.
<Example>
Compare 4 with 2 to see if 4 is bigger.
1. Press 4
≥ F 3
2.
2. Press
®
. “1” is returned.