Casio fx-CG20 uAbout Logical Operations, kLogical Operators (AND, OR, NOT, XOR), And, Not, Xor, Display, Operation, [OPTN]-[LOGIC]

kLogical Operators (AND, OR, NOT, XOR) [OPTN]-[LOGIC]

The logical operator menu provides a selection of logical operators.

•{And}/{Or}/{Not}/{Xor} ... {logical AND}/{logical OR}/{logical NOT}/{logical XOR}

•Be sure to specify Comp for Mode in the Setup screen.

Example What is the logical AND of A and B when A = 3 and B = 2? A AND B = 1

Operation	Display
3aav(A)w
2aal(B)w
av(A)K6(g)6(g)
4(LOGIC)1(And)al(B)w	1

uAbout Logical Operations

•A logical operation always produces either 0 or 1 as its result.

•The following table shows all of possible results that can be produced by AND, OR and XOR operations.

Value or Expression A	Value or Expression B	A AND B	A OR B	A XOR B
A ≠ 0	B ≠ 0	1	1	0
A ≠ 0	B = 0	0	1	1
A = 0	B ≠ 0	0	1	1
A = 0	B = 0	0	0	0

• The following table shows the results produced by the NOT operation.

Value or Expression A	NOT A
A ≠ 0	0
A = 0	1

2-23