Scientific Calculator Lab

Scientific Calculator Lab is a high-precision scientific calculator for students, engineers, teachers, researchers, and anyone who needs more than a basic calculator. Edit natural formulas, plot functions, solve numeric equations, work with matrices and complex numbers, and convert units - core tools work offline, with one purchase and no subscription. Calculate with confidence - Natural formula editing with fractions, roots, powers, parentheses, variables, and a movable cursor - Standard, scientific, programmer, statistics, and RPN modes - High-precision numerical calculation up to 100 significant digits - Fractions, recurring decimals, complex numbers, matrices, and numeric equation solving - Numerical derivatives and integrals without requiring an internet connection - Clear error states for invalid input, domain errors, overflow, and non-convergent results Explore functions visually - Plot explicit, parametric, and polar functions - Display multiple functions, zoom, pan, trace, intersections, extrema, and tangent information - Use parameter sliders and table data to explore relationships - Inspect plotted functions with zoom, pan, numerical analysis tools, and image export Built-in tools - Convert length, weight, temperature, area, volume, speed, time, power, pressure, data, and energy - Browse a curated formula library for mathematics, physics, chemistry, and engineering - Reference a versioned library of physical constants - Keep a calculation tape, search history, save bookmarks, and manage variables - Export selected history and results for study or work Made for iPhone and iPad Use portrait or landscape layouts, iPad split view, a home screen widget, Shortcuts, VoiceOver, Dynamic Type, dark mode, and Chinese or English language support. Private by design Scientific Calculator Lab keeps core calculation available offline. No account, sign-in, ads, subscription, or third-party analytics is required. Your expressions, results, history, bookmarks, and variables stay on your device unless you choose to export them. Legal and support pages require a network connection only when you open them. One-time purchase Buy once in the App Store and use every feature included in the first release. No feature locks and no recurring fees. Designed for dependable numerical work in the classroom, lab, office, and on the go. Always verify results before using them in safety-critical or professional decisions.