This is a basic calculator web application that allows users to perform arithmetic calculations. It provides a user-friendly interface with buttons for inputting numbers, operators, and parentheses.

• Input field to display the result of calculations
• Buttons for numbers (0-9), decimal point, operators (+, -, *, /), and parentheses (() and ))
• AC button to clear the input field
• C button to delete the last character
• = button to evaluate the expression and display the result
• Error handling for invalid expressions

• HTML: Markup language for creating the calculator interface
• CSS: Styling language for visually enhancing the calculator
• JavaScript: Programming language for implementing calculator functionality
• Math.js: Library for evaluating mathematical expressions

To use the calculator, simply open the index.html file in a web browser. You can enter numbers and perform calculations by clicking on the buttons provided. The result will be displayed in the input field.

The project consists of three main files:

1. index.html: Contains the HTML structure of the calculator interface and includes the necessary CSS and JavaScript files.
2. style.css: Defines the visual styles for the calculator interface, including colors, dimensions, and positioning.
3. script.js: Implements the JavaScript functions that handle user interactions and perform the calculations.

The JavaScript functions included in script.js are:

• appendValue: Appends the clicked button value to the current expression in the input field.
• appendOperator: Appends the clicked operator to the current expression, handling certain validation rules.
• clearResult: Clears the input field and resets the current expression.
• deleteLastChar: Deletes the last character from the current expression.
• calculate: Evaluates the current expression using the eval function and displays the result in the input field.
• calculateEquation: Evaluates the current expression using the math.evaluate function from Math.js and displays the result in the input field.
• solveAlgebra: Simplifies the current algebraic expression using the math.simplify function from Math.js and displays the result in the input field.

The project utilizes the following external resources:

• Google Fonts: Provides a wide range of fonts for the calculator interface.
• Math.js: Library for mathematical calculations and algebraic simplification.

This project is licensed under the MIT License.