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»
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Boolean Computation
>
Xor
>
Mathematica
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Logic & Boolean Algebra
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Boolean Computation
>
Xor
>
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Mathematics and Algorithms
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Boolean Computation
>
Xor
>
BUILT-IN MATHEMATICA SYMBOL
Relational and Logical Operators
Operators
Tutorials »
|
LogicalExpand
Mod
BitXor
Xnor
Nor
Or
BooleanCountingFunction
See Also »
|
Boolean Computation
Logic & Boolean Algebra
More About »
Xor
Xor
is the logical XOR (exclusive OR) function. It gives
True
if an odd number of the
are
True
, and the rest are
False
. It gives
False
if an even number of the
are
True
, and the rest are
False
.
MORE INFORMATION
Xor
can be input in
StandardForm
and
InputForm
as
. The character
can be entered as
Esc
xor
Esc
or
\[Xor]
.
Xor
gives symbolic results when necessary, applying various simplification rules to them.
Unlike
And
,
Nand
,
Or
, and
Nor
,
Xor
must always test all its arguments, and so is not a control structure, and does not have attribute
HoldAll
.
EXAMPLES
CLOSE ALL
Basic Examples
(2)
Enter using
Esc
xor
Esc
:
In[1]:=
Out[1]=
In[2]:=
Out[2]=
Enter using
Esc
xor
Esc
:
In[1]:=
Out[1]=
Scope
(4)
Xor
is associative and commutative:
Do symbolic simplification:
Expand in terms of
And
,
Or
, and
Not
:
TraditionalForm
formatting:
Applications
(3)
Find the
Xor
of two regions in 2D:
Find the
Xor
of three regions in 3D:
A cellular automaton based on
Xor
:
Find the area of the symmetric difference of sets given by algebraic conditions:
This shows the set:
Properties & Relations
(3)
Truth table for
Xor
:
Use
BooleanConvert
to expand in terms of
And
,
Or
, and
Not
:
Xor
of conditions in
Boole
functions:
Neat Examples
(2)
The
Xor
of disks on a circle:
Generate three disks on a circle:
A truth table for a 12-variable
Xor
function:
SEE ALSO
LogicalExpand
Mod
BitXor
Xnor
Nor
Or
BooleanCountingFunction
TUTORIALS
Relational and Logical Operators
Operators
MORE ABOUT
Boolean Computation
Logic & Boolean Algebra
RELATED LINKS
NKS|Online
(
A New Kind of Science
)
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