Equation.io plots 2D curves, inequality regions, scalar fields, complex functions, 3D surfaces and parametric curves in your browser (WebGL, JavaScript required).
The entire graph state lives in the URL fragment, so a link can open the app with equations already rendered: https://equation.io/#<equation>;<equation>;... — percent-encode each equation (encodeURIComponent), join with ;. Examples: a parabola is https://equation.io/#y%3Dx%5E2 and a 3D cylinder is https://equation.io/#(cos(2pi%20u)%2C%20sin(2pi%20u)%2C%204v-2)
https://equation.io/#<equation>;<equation>;...
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Full expression syntax and deep-link reference for AI assistants: https://equation.io/llms.txt. To show a user a graph, reply with a single https://equation.io/#... link. Feature gallery: https://equation.io/about/