ANDoperatori

ANDoperatori, or the AND operator, is a binary operator used to combine two boolean expressions. The result is true if and only if both operands evaluate to true. It is also known as conjunction and is commonly denoted by the symbol ∧ in formal logic and by logical operators such as && in many programming languages.

In Boolean algebra and digital logic, the AND operator corresponds to the AND gate. The truth table lists the four possible input combinations: A and B, with the output being 1 only when A=1 and B=1; otherwise the output is 0. This primitive gate forms the basis for more complex circuits and for evaluating conditions in software.

In computing, there are two main variants: logical AND and bitwise AND. Logical AND uses boolean operands and often implements short-circuit evaluation, for example A && B evaluates A first and may skip B if A is false. Bitwise AND applies to integer operands on a per-bit basis, for example 5 & 3 equals 1. Syntax differs by language: C-family languages use && for logical AND and & for bitwise AND; Python uses and for logical AND and & for bitwise; other languages may use different symbols or keywords.

Scope and precedence: The AND operator typically binds more tightly than OR, but exact precedence and associativity vary by language, so parentheses are used to ensure the intended grouping. History: The concept originates from Boolean algebra developed by George Boole in the 19th century, and the operator is fundamental in search queries, filtering, and conditional branching in software.