Simple Calculator

A sleek, modern calculator extension with calculation history, editing, and a futuristic design.

Experience calculations in style with the Futuristic Calculator extension! We've completely redesigned the standard browser calculator, bringing you a powerful, user-friendly tool with a stunning, modern interface featuring enhanced 3D buttons and a sleek history panel. Perfect for students, professionals, and anyone needing quick, reliable math right in their browser. Key Features: Stunning Futuristic Design: Enjoy calculations with visually appealing, responsive 3D-style buttons and a refined, glass-like history panel. Core Arithmetic: Effortlessly handle addition (+), subtraction (-), multiplication (×), and division (÷). Essential Math Functions: Quickly calculate square root (√), square (x²), reciprocal (¹/x), and percentage (%). Large Number & Precision Handling: Displays very large or small numbers using scientific notation and maintains calculation precision. The display font size adjusts dynamically for readability. Repeat Equals Calculation: Just like a standard calculator, press '=' repeatedly after an operation (e.g., 5 + 2 =) to continue the calculation (7 + 2 =, 9 + 2 =, etc.). Advanced Calculation History: Persistent Storage: Your calculation history is automatically saved locally, so it's there when you reopen the calculator. Review: Access a clear, scrollable list of your past calculations by clicking the 'H' button. Copy: Easily copy the full calculation string (e.g., "5 + 2 = 7") to your clipboard using the Copy icon (⎘). (Requires clipboardWrite permission). Edit & Reuse: Load any previous calculation's expression back into the calculator using the Edit icon (✎) to modify or recalculate. Intuitive Editing Mode: Correct or modify expressions loaded from history. Use arrow keys (← →) to navigate the input. Use the dedicated Backspace button (←) to delete characters. Press Enter or '=' to evaluate the edited expression. Full Keyboard Support: Speed up your workflow using your keyboard for numbers, operators (+, -, *, /), Enter (=), Backspace, and Escape (C). Clear Controls: ← (Backspace): Deletes the last digit or character. C (Clear): Fully resets the calculator state and clears the current calculation. Getting Started: Install the extension from the Chrome Web Store. Click the Futuristic Calculator icon in your Chrome toolbar to open the popup. Perform calculations using your mouse or keyboard. Tips for Power Users: Utilize keyboard shortcuts for maximum speed. The persistent history is great for tracking complex work or recalling frequent calculations. Use the 'Edit' feature in history to quickly adjust previous calculations without retyping everything. Press '=' repeatedly to quickly perform chained operations like compound interest or sequential additions. Futuristic Calculator combines essential functionality with a cutting-edge design, making it your reliable and stylish calculation companion. Always just a click away! Download now and experience the future of browser-based calculation! Key Improvements in the Description: Name: Changed to "Futuristic Calculator" to match the design (adjust if you kept the old name in manifest.json). Highlighting Design: Emphasizes the new visual style upfront. Repeat Equals: Clearly listed as a key feature. Persistent History: Mentions that history is saved locally (using LocalStorage). Large Number Handling: Added as a feature. Copy/Edit Icons: Uses the actual icons (⎘, ✎) for clarity. Permission Justification: Notes the reason for clipboardWrite permission inline. Backspace: Explicitly mentions the ← button/key instead of 'CE'. Structure: Reorganized slightly for better flow (Features first, then How-To/Tips). Tone: Adjusted to sound more modern and align with the "futuristic" theme. Removed Outdated Info: Removed references to "Quick Calc" and the specific 'CE' button.