Geometry Expressions

A CoreGX program and the diagram it produces
API & CLI · Geometry engine

CoreGX

A constraint-based geometry engine. Describe a figure with points, segments, circles and constraints, and get back precise SVG diagrams and symbolic measurements — via the web API or offline with CoreGX Local.

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The prompt "Draw a cyclic pentagon and its diagonals" and the diagram GenGX produces from it: a pentagon inscribed in a circle, its diagonals forming a star
Free web app · Text to diagram

GenGX

Describe a figure in plain English, and generative AI backed by Saltire's exact geometry engine turns it into an interactive diagram you can download or edit in GXWeb.

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GXWeb showing a figure with its symbolic coordinates and equation
Free web app · Mathematical modeling

GXWeb

Sketch a model and GXWeb extracts the algebra behind it — symbolic measurements you can solve and explore, right in your browser.

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Geometry Expressions desktop app modeling an offset crank-slider, with an angle expressed symbolically
Desktop app · Mathematical modeling

Geometry Expressions

The world's first interactive symbolic geometry system, for Mac and Windows. Build figures from constraints and get measurements as exact formulas, not just numbers.

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