Scientific Calculator

A versatile, web-based calculator built with HTML, CSS, and JavaScript. This project features multiple modes including a scientific calculator, a currency converter, and a unit size converter for length, area, and volume.

Live Demo

You can try the live demo here: https://bala-2305.github.io/scientific-calculator/

Screenshot

Features

• Scientific Calculator: Perform advanced mathematical calculations using functions like sine, cosine, tangent, logarithm, square root, and more. It also supports constants like π and e.
• Currency Converter: Easily convert between major currencies like USD, EUR, GBP, INR, and JPY with static exchange rates.
• Size Converter: Convert various units of measurement for length, area, and volume, including both metric and imperial systems.
• History Panel: Keep track of your previous calculations in the scientific mode. You can click on a history item to reload it into the calculator.
• Keyboard Support: Use your keyboard for faster calculations in the scientific mode.
• Tabbed Interface: A clean, tabbed interface to switch between the different calculator modes.

How to Use

1. Switching Modes: Click on the "Scientific", "Currency", or "Size" tabs at the top to switch between the different calculators.

2. Scientific Calculator:

   • Use the buttons to input numbers and operations.
   • The formula is displayed in the top input field, and the result is shown in the bottom display.
   • AC clears the entire input, and DEL removes the last character.
   • The history of your calculations is shown on the right. Click any entry to bring it back to the input field.

3. Currency Converter:

   • Enter the amount you want to convert.
   • Select the 'from' and 'to' currencies from the dropdown menus.
   • Click "Convert" to see the result.

4. Size Converter:

   • First, select the type of conversion: "Length", "Area", or "Volume".
   • Enter the value you want to convert.
   • Choose the 'from' and 'to' units.
   • Click "Convert" to get the result.

Keyboard Shortcuts (Scientific Mode)

• Numbers (0-9), Operators (+, -, *, /), Decimal (.), Parentheses (()): Directly input into the formula.
• Enter: Calculate the result.
• Backspace: Delete the last character.
• Escape: Clear the display.
• s: sin(
• c: cos(
• t: tan(
• l: log( (base 10)
• n: ln( (natural log)
• r: sqrt(
• p: π
• e: e

Technologies Used

• HTML5
• CSS3
• JavaScript

Author

Created by balas_hmb