Functions — Chapter Summary
CBSE · Class 11 · Computer Science
Summary of Functions for CBSE Class 11 Computer Science. Part of the CBSE Class 11 Computer Science syllabus. Functions make a program easier to read.
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Overview
Functions make a program easier to read, shorter, and more reusable. A function is a named group of instructions that performs a specific task when it is called. Modular programming divides a large program into smaller independent parts, which helps manage complex problems. The chapter begins with t
Key Concepts
A function is a named group
A function is a named group of instructions that accomplishes a specific task when it is invoked. It may have parameters and may or may not return a v
Modular programming means dividing a computer
Modular programming means dividing a computer program into separate independent blocks of code or sub-problems with different names and specific funct
A function definition begins with def
A function definition begins with def. The function header ends with a colon, and the function body is indented. Statements outside the indentation ar
An argument is a value passed
An argument is a value passed during a function call, and the corresponding parameter is the variable in the function header that receives it.
Python allows assigning a default value
Python allows assigning a default value to a parameter. If the function call does not provide that argument, the default value is used.
Learning Objectives
- Understand the meaning and advantages of functions
- Learn how to define and call user defined functions
- Understand arguments, parameters, and default parameters
- Distinguish between functions that return values and void functions
- Understand flow of execution in a program
Frequently Asked Questions
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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