Update README to include C++ and Python versions

Merged documentation for C++ and Python scientific calculators.

README.md

@@ -1,205 +1,3 @@
-<<<<<<< HEAD
-# ScientificCalculator
-
-A feature-rich scientific calculator implemented in C++ that provides advanced mathematical operations and a user-friendly interface.
-
-## Features
-
-- **Basic Arithmetic Operations**: Addition, subtraction, multiplication, and division
-- **Advanced Mathematical Functions**: 
-  - Trigonometric functions (sin, cos, tan)
-  - Inverse trigonometric functions (asin, acos, atan)
-  - Logarithmic functions (log, log10)
-  - Exponential functions (exp, pow)
-  - Square root and power operations
-- **Memory Functions**: Store, recall, and clear memory values
-- **Error Handling**: Comprehensive error detection and user-friendly error messages
-- **Clean Interface**: Simple and intuitive command-line interface
-
-## Requirements
-
-- C++ compiler (C++11 or later recommended)
-- Standard C++ library only (no external dependencies)
-
-## Building the Project
-
-### Prerequisites
-- C++ compiler (g++, clang++, or MSVC)
-- CMake (optional, for automated builds)
-
-### Compilation
-
-#### Using g++ (Linux/macOS)
-```bash
-g++ -std=c++11 -o ScientificCalculator main.cpp calculator.cpp
-```
-
-#### Using Makefile
-```bash
-make
-```
-
-#### Using CMake
-```bash
-mkdir build
-cd build
-cmake ..
-make
-```
-
-## Usage
-
-1. **Run the executable**:
-   ```bash
-   ./ScientificCalculator
-   ```
-
-2. **Basic Operations**:
-   ```
-   Enter an expression or command: 5 + 3
-   Result: 8
-   ```
-
-3. **Advanced Functions**:
-   ```
-   Enter an expression or command: sin(30)
-   Result: 0.5
-   ```
-
-4. **Memory Operations**:
-   ```
-   Enter an expression or command: memstore 10
-   Enter an expression or command: memadd 5
-   Enter an expression or command: memrecall
-   Result: 15
-   ```
-
-5. **Exit the calculator**:
-   ```
-   Enter an expression or command: exit
-   ```
-
-## Supported Operations
-
-### Basic Arithmetic
-- `+` : Addition
-- `-` : Subtraction
-- `*` : Multiplication
-- `/` : Division
-- `^` : Power operation
-
-### Trigonometric Functions
-- `sin(x)` : Sine
-- `cos(x)` : Cosine
-- `tan(x)` : Tangent
-- `asin(x)` : Arcsine
-- `acos(x)` : Arccosine
-- `atan(x)` : Arctangent
-
-### Logarithmic and Exponential Functions
-- `log(x)` : Natural logarithm
-- `log10(x)` : Base-10 logarithm
-- `exp(x)` : Exponential function
-- `sqrt(x)` : Square root
-- `pow(x, y)` : Power function
-
-### Memory Functions
-- `memstore x` : Store value in memory
-- `memadd x` : Add value to memory
-- `memsubtract x` : Subtract value from memory
-- `memrecall` : Recall memory value
-- `memclear` : Clear memory
-
-## Project Structure
-
-```
-ScientificCalculator/
-├── main.cpp              # Main program entry point
-├── calculator.cpp        # Core calculator implementation
-├── calculator.h          # Calculator class header
-├── README.md             # This file
-└── Makefile              # Build configuration (optional)
-```
-
-## Code Structure
-
-### Calculator Class
-The main calculator functionality is implemented in the `Calculator` class, which provides:
-- Expression parsing and evaluation
-- Mathematical function implementations
-- Memory management
-- Error handling
-
-### Key Components
-- **Expression Parser**: Handles input parsing and tokenization
-- **Evaluator**: Processes mathematical expressions and computes results
-- **Function Library**: Implements all supported mathematical functions
-- **Memory Manager**: Handles storage and retrieval of memory values
-
-## Error Handling
-
-The calculator includes comprehensive error handling for:
-- Invalid expressions
-- Division by zero
-- Domain errors (logarithm of negative numbers, etc.)
-- Memory overflow/underflow
-- Syntax errors
-
-Error messages are user-friendly and provide guidance for correct usage.
-
-## Examples
-
-### Basic Calculations
-```
-Enter an expression or command: 15 * 4 + 10 / 2
-Result: 65
-
-Enter an expression or command: 2 ^ 10
-Result: 1024
-```
-
-### Scientific Calculations
-```
-Enter an expression or command: sin(45) + cos(45)
-Result: 1.41421
-
-Enter an expression or command: log(100) * exp(2)
-Result: 18.4207
-```
-
-### Memory Operations
-```
-Enter an expression or command: memstore 25
-Enter an expression or command: memadd 15
-Enter an expression or command: memrecall
-Result: 40
-```
-
-## Contributing
-
-1. Fork the repository
-2. Create a feature branch
-3. Make your changes
-4. Test thoroughly
-5. Submit a pull request
-
-## License
-
-This project is open source and available under the MIT License.
-
-## Future Enhancements
-
-- Graphical user interface (GUI) implementation
-- Additional mathematical functions (hyperbolic functions, statistical functions)
-- Expression history and recall
-- Custom variable storage
-- Unit conversion capabilities
-- Complex number support
-
-## Contact
-
-For questions, suggestions, or contributions, please open an issue on the GitHub repository.
-=======
 # Scientific Calculator
 
 A simple scientific calculator built in Python.
@@ -220,4 +18,3 @@ Inspired by Python calculator tutorials.
 
 ## Disclaimer
 For learning purposes.
->>>>>>> e44406f (Improve project: code quality, docs, and structure)