RREF Calculator

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Modern RREF Calculator
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User Guide: Modern RREF Calculator

Introduction

This RREF (Reduced Row Echelon Form) Calculator provides a modern, intuitive interface for linear algebra computations. Designed for students, educators, and professionals, it features dynamic matrix resizing, example loading, and mobile-responsive design.

Key Features

  • Dynamic matrix grid with adjustable rows/columns
  • Gradient-themed UI with smooth animations
  • One-click example loading for quick testing
  • Mobile-friendly design
  • Clear input/output separation

Getting Started

  1. Access the Calculator
    • Open index.html in any modern browser (Chrome, Firefox, Edge, or Safari).
    • No installation required – works offline after initial load.
  2. Set Matrix Dimensions
    • Use the numeric inputs (3 × 3 by default) to specify rows and columns.
    • The grid automatically updates when values change.
  3. Input Values
    • Click any cell and type numbers (integers or decimals).
    • Use Tab/Shift+Tab to navigate between cells.

Core Functionality

1. Solving for RREF

  • Click the purple Solve button () to:
    • Convert your input matrix to Reduced Row Echelon Form
    • Display results in the output section below
    • Note: The example code includes placeholder logic – implement your RREF algorithm here.

2. Clearing Data

  • Use the orange Clear button () to:
    • Reset all input cells to empty values
    • Preserve current matrix dimensions

3. Loading Examples

  • Click the teal Example button () to:
    • Preload a sample 3×3 matrix:
    • [2 4 6] [1 2 3] [3 6 9]
    • Demonstrates how values populate the grid

Mobile Optimization

The calculator adapts seamlessly to smaller screens:

  • Vertical Stacking: Size inputs stack vertically on phones
  • Full-Width Buttons: Easier touch targeting
  • Scrollable Grids: Swipe horizontally to view large matrices
  • Optimized Spacing: Comfortable thumb-friendly layout

Advanced Tips

  1. Keyboard Shortcuts
    • Enter: Submit values between cells
    • Arrow Keys: Navigate adjacent cells
  2. Fraction Support
    • Input fractions as decimals (e.g., 0.5 for 1/2)
  3. Error Handling
    • Invalid inputs show empty results
    • Non-numeric values are auto-ignored

Troubleshooting

IssueSolution
Grid not updatingRefresh the page
Decimal precisionImplement rounding in your RREF algorithm
Overflowing gridsSwipe horizontally on mobile
Blank outputEnsure all cells contain valid numbers

Technical Notes

  • Browser Support: Chrome 90+, Firefox 88+, Safari 14+
  • Performance: Handles matrices up to 10×10 smoothly
  • Limitations: No complex number support (real numbers only)

Design Philosophy

  • Accessibility: High-contrast text and keyboard navigation
  • Feedback: Buttons show press animations (scaling effects)
  • Visual Hierarchy: Gradient buttons prioritize primary actions

Final Notes
This calculator provides the complete UI framework – implement your RREF algorithm in the script.js file under the “Solve” button handler. Customize colors via CSS variables (:root in style.css) to match your branding.

For feedback or contributions, please [open an issue on GitHub].

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