Study Bank

A collection of educational problem generators and solution management tools for various subjects including algebra, calculus, computer science, and more.

Features

• Problem Generators: Automated problem generation for multiple subjects (see PG-13/ directory)
• Encrypted Solution Manual: Secure storage and distribution of problem solutions with password-based encryption
• Various Subjects: Algebra, Calculus, Linear Algebra, Boolean Algebra, Computer Networks, and more

Getting Started

Problem Generators

The PG-13 directory contains various problem generators for different subjects:

• algebra1_problems.py - Linear equations, quadratic equations, inequalities
• calculus.py - Derivatives, integrals, algebraic equations
• linear_algebra.py - Matrix operations, linear systems
• generate_problems_with_solutions.py - Binary and hexadecimal operations
• And many more...

Encrypted Solution Manual

Securely manage solution manuals with password-based encryption. Perfect for teachers who want to distribute problems while keeping solutions secure.

Quick Start:

# Create an encrypted solution manual
python3 solution_manual_cli.py create -o my_solutions.enc

# View encrypted solutions (requires password)
python3 solution_manual_cli.py view my_solutions.enc --show-steps

# Verify password
python3 solution_manual_cli.py verify my_solutions.enc

For detailed documentation, see ENCRYPTED_SOLUTION_MANUAL.md

Example: Generate Problems with Solutions

import random
from reportlab.lib.pagesizes import letter
from reportlab.pdfgen import canvas

# Function to generate arithmetic problems and their solutions
def generate_problems_with_solutions(num_problems=10):
    problems = []
    solutions = []
    operations = ['+', '-', '*', '/']
    
    for _ in range(num_problems):
        num1 = random.randint(1, 20)
        num2 = random.randint(1, 20)
        operation = random.choice(operations)
        
        if operation == '/':
            num1 = num1 * num2  # Ensure division results in an integer
        
        problem = f"{num1} {operation} {num2}"
        solution = eval(problem)
        
        problems.append(problem)
        solutions.append(solution)
    
    return problems, solutions

# Function to save problems and solutions to a PDF
def save_problems_and_solutions_to_pdf(problems, solutions, filename="arithmetic_problems_solutions.pdf"):
    c = canvas.Canvas(filename, pagesize=letter)
    width, height = letter
    
    c.setFont("Helvetica", 12)
    y_position = height - 40
    
    c.drawString(40, y_position, "Arithmetic Problems")
    y_position -= 20
    
    for i, problem in enumerate(problems):
        c.drawString(40, y_position, f"{i+1}. {problem} = ")
        y_position -= 20
        
        if y_position < 40:  # Start new page if space is insufficient
            c.showPage()
            c.setFont("Helvetica", 12)
            y_position = height - 40
    
    c.showPage()
    y_position = height - 40
    c.drawString(40, y_position, "Solutions")
    y_position -= 20
    
    for i, solution in enumerate(solutions):
        c.drawString(40, y_position, f"{i+1}. {solution}")
        y_position -= 20
        
        if y_position < 40:  # Start new page if space is insufficient
            c.showPage()
            c.setFont("Helvetica", 12)
            y_position = height - 40
    
    c.save()

# Generate and save problems with solutions
problems, solutions = generate_problems_with_solutions(num_problems=30)
save_problems_and_solutions_to_pdf(problems, solutions)

Installation

Requirements:

• Python 3.7+
• cryptography library (for encrypted solution manuals)
• reportlab (for PDF generation)
• sympy (for symbolic mathematics)

pip install cryptography reportlab sympy

Security

See SECURITY.md for security policies and vulnerability reporting.

For encrypted solution manuals, please follow the security best practices outlined in ENCRYPTED_SOLUTION_MANUAL.md.

License

See LICENSE for license information.