Using the Vabelic JavaScript Scientific Calculator is simple and beginner-friendly.
Follow these easy steps to get started:

1. Open the Calculator Page

   • Simply visit the Vabelic Scientific Calculator webpage.

   • It works directly in your browser – no installation or registration needed.

2. Enter Numbers and Operators

   • Use the on-screen buttons for numbers and basic operations like +, -, ×, ÷.

   • You can also use parentheses ( ) for complex equations.

3. Use Trigonometric and Advanced Functions

   • Tap on functions like sin, cos, tan, log, ln, or √ as per your calculation.

   • Switch between Degree (DEG) and Radian (RAD) mode for trigonometry to get accurate results.

4. Insert Mathematical Constants

   • Use π (pi) or e in your calculations directly without typing long values.

5. Perform Voice Input (Optional)

   • Click the 🎙️ Voice button and speak your equation.

   • Example: Say “five plus nine” to enter 5+9.

   • This is perfect for hands-free use or mobile devices.

6. View and Analyze Your Results

   • Press the = (Equal) button to get instant results.

   • If you made a mistake, use Undo/Redo or check History to correct it.

7. Visualize with Graphs

   • Click 📈 Line Chart or 📊 Bar Chart to see your function plotted.

   • Great for students and teachers to understand equations visually.

8. Save Your Work as PDF

   • Use the 📄 PDF button to download your results along with graphs and a timestamp.

   • This is useful for homework, reports, or presentations.

9. Learn with Step-by-Step Explanation

   • Use the 🧠 Explain button to understand how the calculation followed BODMAS/PEMDAS rules.

   • This makes learning math concepts easier.

10. Reset and Start Fresh

    • Use the 🔄 Reset button anytime to clear the display and start a new calculation.