XOR - meaning and definition. What is XOR
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What (who) is XOR - definition

TRUE WHEN EITHER BUT NOT BOTH INPUTS ARE TRUE
Xor; XOR function; Exclusive-or; Exclusive OR; XORed; Exclusive nand; XOR; BitXor; Bit xor; Logical inequality; Logical XOR; XOR (logic); Exclusive disjunction; ↮; Ex or; Exclusive Or; Exclusive-Or; EXOR (logic); ⊻; Exclusive-OR; EX-OR; Zhegalkin addition; Zegalkin addition; Žegalkin addition; Gegalkine addition; Gégalkine addition; Shegalkin addition; Schegalkin addition; Жега́лкин addition; ⩒
  • Arguments on the left combined by XOR. This is a binary [[Walsh matrix]] (cf. [[Hadamard code]]).
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  • Traditional symbolic representation of an XOR [[logic gate]]
  • binary]] representation. This is also the vector addition in <math>(\Z/2\Z)^4</math>.

XOR         
¦ noun Electronics exclusive OR.
xor         
XOR cipher         
ENCRYPTION BY SIMPLE EXCLUSIVE-OR LOGIC OPERATIONS
Simple XOR Cipher; Simple XOR cipher; XOR encryption; Xor encryption; Xor cipher
In cryptography, the simple XOR cipher is a type of additive cipher, an encryption algorithm that operates according to the principles:

Wikipedia

Exclusive or

Exclusive or or exclusive disjunction is a logical operation that is true if and only if its arguments differ (one is true, the other is false).

It is symbolized by the prefix operator J and by the infix operators XOR (, , or ), EOR, EXOR, , , , , {\displaystyle \nleftrightarrow } , and . The negation of XOR is the logical biconditional, which yields true if and only if the two inputs are the same.

It gains the name "exclusive or" because the meaning of "or" is ambiguous when both operands are true; the exclusive or operator excludes that case. This is sometimes thought of as "one or the other but not both". This could be written as "A or B, but not, A and B".

Since it is associative, it may be considered to be an n-ary operator which is true if and only if an odd number of arguments are true. That is, a XOR b XOR ... may be treated as XOR(a,b,...).