Modellus Documentation
Everything you need to build, simulate, and analyze mathematical models. Learn about each shape type, the expression language, data analysis tools, and more.
Shapes
Every element on the Modellus board is a shape. Each shape type has unique capabilities.
Expression
Write equations and define the mathematics of your model.
Table
Display computed values, enter data, select cells for regression.
Chart
Visualize data series, regression curves, and outliers.
Body
Animated characters that move according to your equations.
Point
A positioned dot on the board, driven by expressions.
Line
Connect two points or draw directional segments.
Arc
Draw arcs and angles between directions.
Vector
Display arrows with magnitude and direction from equations.
Slider
Interactive control to adjust parameters in real time.
Gauge
Circular dial displaying a term value visually.
Value
Show a numeric value label for any term.
Media
Embed images and backgrounds on the board.
Text
Add rich text annotations and labels.
Ruler
Measure distances on the board canvas.
Protractor
Measure and display angles interactively.
Referential
Coordinate system for positioning child shapes.
Question
Create assessment questions within a model.
Data Analysis
Modellus includes tools for statistical analysis of data collected in tables.
Regression
Fit linear or quadratic curves to your data points.
Outliers
Detect and visualize outlier data points in charts.
Marketplace
Discover, publish, and manage scientific models, videos, data sets, and animated characters.
For AI Agents
Machine-readable reference for AI tools that generate or interpret Modellus models.