Boolean operators and truth tables Computers use electrical circuits which have two states – on or off. This can also be represented as 1 or 0 or True and False.

A Boolean expression combines characteristics with logical or, and, and negation operators to produce a binary (true or false) evaluation of the expression. Characteristic Boolean expressions, ...

Boolean operators and truth tables Computers use electrical circuits which have two states – on or off. This can also be represented as 1 or 0 or True and False.

Boolean operators, which Excel calls logical functions, include AND, OR, NOT, and a new function called XOR. These operators are used between search terms to narrow, expand, ...

This is why it’s important to understand and master these search operators. Why It’s Called Boolean. Boolean refers to George Boole, a 19th-century mathematician who invented Boolean logic.

Table 2 also shows grouped operators with equal precedence. The third column of Table 2 shows the group to which each operator belongs; these groups do not govern precedence. Table 3 compares VHDL to ...

A search for data that meets several criteria by using the Boolean operators AND, OR and NOT (see Boolean logic). For example, the request: "Search for all Spanish and French speaking employees ...