What it does
Numbat is an interactive scientific calculation language with physical units, dimensional types, constants and custom definitions.
Numbat keeps physical units in scientific expressions and checks dimensions as types. Convert compatible quantities with ->, define functions or units, and reuse the previous result with ans or _. Its browser terminal offers command history, completion and inspection commands. Copying the address shares the entered calculation sequence, because input lines are appended to the URL. Clear removes console output; reset instead clears the interpreter state and URL. The native command-line edition can use an init.nbt file for custom units and definitions. Numbat uses strict syntax and reports incompatible expressions; it is a numerical scientific calculator rather than a computer algebra system for symbolic integrals or differential-equation solving.
Strengths
- Dimensional types and unit-aware expressions
- Custom functions, constants and units
Watch out for
- Expressions must follow the documented strict syntax
Best for
- Scientific calculations where unit consistency matters