Pure math, cleanly presented.

Favorites and widget pins are global. History entries are tagged by dashboard so each dashboard shows only its own activity — with a global export available on the hub.

Every widget uses the same Universal Converter Engine that powers our full converter tools — deterministic factor + offset math, IEEE-754 rounding, and validated non-negative constraints where required.

Yes. Every dashboard is fully offline-first — no external APIs are called for calculations. Installing the app to your home screen keeps it available with no network.

No. Every scientific, algebra, statistics, geometry, matrix, and vector calculator runs 100% client-side using pure math engines. Nothing is uploaded, cached, or logged, and the tools keep working once the page has loaded.

Every engine uses a shared Precision Engine that eliminates floating-point drift and formats extreme magnitudes with scientific notation. You can pick 0–15 decimal places on the scientific calculator.

Standard operators (+, −, ×, ÷, ^, %, !), parentheses, constants (π, e, τ), and functions sin, cos, tan, asin, acos, atan, sinh, cosh, tanh, log, log2, ln, exp, sqrt, cbrt, abs, floor, ceil, round, sign, mod, and pow — with a Degrees/Radians toggle.

Yes. Every calculator produces Markdown, CSV, JSON, and plain-text artifacts you can copy, download, print, or share — including step-by-step formula reports.