Brief Overview Chapter of Python | Class 11 Informatics Practices Notes

3.6 OPERATORS

Operators in Python are special symbols or keywords that perform specific operations on one or more operands (values or variables). Python supports several categories of operators including Arithmetic, Relational, Assignment, Logical, and Membership operators. Arithmetic operators perform mathematical calculations such as addition (+), subtraction (-), multiplication (), division (/), modulus (%), floor division (//), and exponentiation (**). The + operator can also concatenate strings, and can repeat strings when used with an integer. Relational operators compare two values and return a Boolean result (True or False). These include equals (==), not equals (!=), greater than (>), less than (<), greater than or equal to (>=), and less than or equal to (<=). Assignment operators assign values to variables and can combine assignment with arithmetic operations, such as +=, -=, *=, etc. Logical operators (and, or, not) combine Boolean expressions to form more complex conditions. Membership operators (in, not in) check for the presence or absence of a value in a sequence. Understanding operators is essential for writing expressions and controlling program flow.

📊 Diagram: Tables 3.3 to 3.7 list arithmetic, relational, assignment, logical, and membership operators with their descriptions and examples.

🧪 Activity: Examples demonstrating operator usage in Python interactive mode.

🔗 Connection: Leads to expressions, which are combinations of operators, constants, and variables.