What is a Flowchart ? Symbols , Examples & How to create a Flowchart .

📊 What is a Flowchart?

Symbols, Examples & How to Create a Flowchart

Visualize Your Algorithm Before Writing Code 🚀

🚀 Introduction

In the previous lesson, we learned about Algorithms. An algorithm tells us the step-by-step solution to a problem.

A Flowchart is a visual representation of an algorithm. It uses different shapes and arrows to show the flow of a program.

"Flowchart is a graphical way to represent the logic of a program."

⭐ Why Do Programmers Use Flowcharts?

• Understand program logic easily
• Find mistakes before coding
• Explain ideas to others
• Make complex problems simple
• Improve programming skills

🔷 Common Flowchart Symbols

⭕

Start / End

Shows beginning and ending of a program.

▭

Process

Represents calculations or instructions.

◇

Decision

Used for yes/no conditions.

⬇️

Arrow

Shows the direction of flow.

💻 Example: Check Whether a Number is Positive or Negative

Algorithm:

1. Start
2. Enter a number
3. Check if number is greater than zero
4. If yes, display "Positive"
5. Otherwise display "Negative"
6. Stop

Flowchart Representation:

⭕ Start
⬇️
▭ Enter Number
⬇️
◇ Number > 0 ?
⬇️
✅ Yes → Positive
❌ No → Negative
⬇️
⭕ Stop

🛠️ How to Create a Flowchart?

Step 1

Understand the problem clearly.

Step 2

Write the algorithm steps.

Step 3

Choose correct symbols.

Step 4

Connect symbols using arrows.

🔥 Advantages of Flowcharts

• Easy to understand
• Improves program planning
• Saves development time
• Helps debugging
• Useful for teamwork

👨‍💻 Flowchart and Programming Connection

Professional programmers often follow this process:

Problem → Algorithm → Flowchart → Code → Testing → Final Program

🎯 Conclusion

Flowcharts help programmers visualize their ideas before writing code. Learning flowcharts will make your programming logic stronger.

Next Step: Write Your First C Program 🚀