# What is a Boolean expression?

A Boolean expression is a logical statement that is either TRUE or FALSE . Boolean expressions can compare data of any type as long as both parts of the expression have the same basic data type.

Likewise, what is the SOP and POS?

The term “Sum of Products” or “SoP” is widely used for the canonical form that is a disjunction (OR) of minterms. Its De Morgan dual is a “Product of Sums” or “PoS” for the canonical form that is a conjunction (AND) of maxterms.

What is a Minterm and maxterm?

Each row of a truth table can be associated with a minterm and a maxterm. A minterm l is a product (AND) of all variables in the function, in direct or complemented form. A minterm has the property that it is equal to 1 on exactly one row of the truth table.

What do you mean by combinational circuit?

In digital circuit theory, combinational logic (sometimes also referred to as time-independent logic ) is a type of digital logic which is implemented by Boolean circuits, where the output is a pure function of the present input only. In other words, sequential logic has memory while combinational logic does not.

## What is Boolean expression in logic gates?

Boolean Algebra Truth Tables. The table used to represent the boolean expression of a logic gate function is commonly called a Truth Table. A logic gate truth table shows each possible input combination to the gate or circuit with the resultant output depending upon the combination of these input(s).

## What is the function of if else statement?

Definition and Usage. The if/else statement executes a block of code if a specified condition is true. If the condition is false, another block of code can be executed. The if/else statement is a part of JavaScript’s “Conditional” Statements, which are used to perform different actions based on different conditions.

## What is a Boolean operators?

Boolean Operators are simple words (AND, OR, NOT or AND NOT) used as conjunctions to combine or exclude keywords in a search, resulting in more focused and productive results. This should save time and effort by eliminating inappropriate hits that must be scanned before discarding.

## What is the Boolean equation?

In mathematics and mathematical logic, Boolean algebra is the branch of algebra in which the values of the variables are the truth values true and false, usually denoted 1 and 0 respectively.

## What does Boolean mean in computing?

In computer science, the Boolean data type is a data type that has one of two possible values (usually denoted true and false), intended to represent the two truth values of logic and Boolean algebra. It is named after George Boole, who first defined an algebraic system of logic in the mid 19th century.

## What is Boolean expression in digital electronics?

Laws of Boolean Algebra. As well as the logic symbols “0” and “1” being used to represent a digital input or output, we can also use them as constants for a permanently “Open” or “Closed” circuit or contact respectively. Boolean Algebra is the mathematics we use to analyse digital gates and circuits.

## What is a Boolean expression in C?

A boolean expression is an expression that has relational and/or logical operators operating on boolean variables. A boolean expression evaluates to either true or false.

## What is a Boolean expression in SQL?

This has three values: TRUE, FALSE, and UNKNOWN. Expressions that return a Boolean data type are known as Boolean expressions. Unlike other SQL Server data types, a Boolean data type cannot be specified as the data type of a table column or variable, and cannot be returned in a result set.

## What is the if statement?

An if statement is a programming conditional statement that, if proved true, performs a function or displays information. Below is a general example of an if statement, not specific to any particular programming language.

## What is a boolean identity?

In mathematics, an identity is a statement true for all possible values of its variable or variables. Like ordinary algebra, Boolean algebra has its own unique identities based on the bivalent states of Boolean variables.

## What is a Boolean expression in Python?

A boolean expression (or logical expression) evaluates to one of two states true or false. Python provides the boolean type that can be either set to False or True. Many functions and operations returns boolean objects. The not keyword can also be used to inverse a boolean type.

## Why is it called a Boolean?

Named after the nineteenth-century mathematician George Boole, Boolean logic is a form of algebra in which all values are reduced to either TRUE or FALSE. Boolean logic is especially important for computer science because it fits nicely with the binary numbering system, in which each bit has a value of either 1 or 0.

## What is an expression in logic?

In computer science, a Boolean expression is an expression in a programming language that produces a Boolean value when evaluated, i.e. one of true or false. Boolean expressions correspond to propositional formulas in logic and are a special case of Boolean circuits.

George Boole

## What is the definition of Boolean algebra?

Boolean algebra is a division of mathematics which deals with operations on logical values and incorporates binary variables. Boolean algebra traces its origins to an 1854 book by mathematician George Boole. The distinguishing factor of Boolean algebra is that it deals only with the study of binary variables.

## What is a Boolean expression in Java?

A boolean type can have one of two values: true or false. In Java, you can’t convert between an integer type and a boolean type. A Boolean expression is a Java expression that, when evaluated, returns a Boolean value: true or false. Boolean expressions are used in conditional statements, such as if, while, and switch.

## What does == mean in Java?

The == operator: The == is a relational operator in Java that is used to compare two operands. It is used to determine whether the two operands are equal or not. Using the == operator, you can compare any primitive type such as int, char, float and Booleans. After comparison, the == operator returns a boolean value.

## What is a character in Java?

char is a primitive type, and it can hold a single character. String is instead a reference type, thus a full-blown object. It can hold any number of characters (internally, String objects save them in a char array). Primitive types in Java have advantages in term of speed and memory footprint.

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