**ScienceToolNote** (Scientific Notebook Calculator: Ultimate Edition) is a sophisticated, dual-mode computational engine engineered in pure C99 for Windows. Designed for students, engineers, and researchers, it seamlessly bridges symbolic reference and numerical evaluation through a curated database of **2000+ mathematical, physical, and engineering formulas**. The application features a custom **Recursive Descent Parser** supporting complex expressions, built-in functions (trigonometric, logarithmic, statistical), and user-defined variables with physical constant resolution (`π`, `c`, `G`, `h`). Operating in three modes—native Win32 GUI with dynamic input fields, interactive REPL console, and CLI batch processing—it adapts to diverse workflows. The GUI employs a hybrid architecture with categorized context menus, real-time formula descriptions, and automatic field generation based on variable lists. Core capabilities span classical mechanics, electromagnetism, thermodynamics, quantum physics, calculus, linear algebra, statistics, and computer science algorithms. Built with strict Unicode support, buffer-safe operations, and zero external dependencies beyond standard Windows libraries (`gdi32`, `comctl32`, `libm`), it compiles to a compact, portable binary. Its modular design decouples parsing logic from UI rendering, enabling straightforward extension via simple `Formula` struct additions. Ideal for homework verification, lab calculations, or rapid technical reference, ScienceToolNote transforms complex scientific formalisms into accessible, offline-capable computations. With MIT licensing, transparent source code, and deterministic performance, the project exemplifies disciplined native Windows programming—delivering reliable, keyboard-driven computational power with minimal system overhead. 🔬🧮💻

sciencetoolnote

Scientific Notebook Calculator: Ultimate Edition

Scientific Notebook Calculator: Ultimate Edition