Class 11 Computer Science — Chapter 7: FUNCTIONS

What you'll learn

• ▸Modular Programming
• ▸Introduction to Functions
• ▸Advantages of Using Functions
• ▸Defining User-Defined Functions
• ▸Function Call
• ▸Arguments and Parameters
• ▸The 'return' Statement

Chapter Summary

--- PAGE 1 --- CHAPTER 7 FUNCTIONS 7.1 INTRODUCTION Till now we have written some programs and might have realised that as the problem gets complex, the number of lines in a program increase, which makes the program look bulky and difficult to manage. Consider the following problem statement: There is a company that manufactures tents as per user's requirements. The shape of the tent is cylindrical surmounted by a conical top. "Once you succeed in writing the programs for [these] complicated algorithms, they usually run extremely fast. The computer doesn't need to understand the algorithm, its task is only to run the programs." - R. Tarjan Figure 7.1: Shape of a tent The company performs the following tasks to fix the selling price of each tent. 1. Accept user requirements for the tent, such as a) height b) radius c) slant height of the conical part 2. Calculate the area of the canvas used 3. Calculate the cost o…

Practice Questions from this Chapter

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1. Explain modular programming simply. Get Solution →
2. Give a real-world example of function reuse. Get Solution →
3. Show how functions simplify debugging. Get Solution →
4. What keyword is used to begin a function definition in Python? Get Solution →
5. According to the text, what is a function? Get Solution →
6. What punctuation mark must a function header always end with? Get Solution →
7. What is the term for dividing a computer program into separate independent blocks of code? Get Solution →
8. In the context of functions, what is a value passed to the function during the function call called? Get Solution →

Did you know?

• 💡 Modern computer chips contain billions of tiny functional units working together.
• 💡 The Python standard library includes thousands of ready-to-use functions and modules.
• 💡 Modular programming helped build the internet by connecting different independent parts.
• 💡 Software functions are like Lego bricks, allowing complex programs to be built quickly.
• 💡 Teams of programmers work on separate code functions simultaneously for big projects.

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