3D Surface Plotter
Type a function of two variables and see it as a 3D surface you can orbit — from saddles to ripples to Gaussians.
3D Surface PlotterLive
z = f(x, y) · drag to orbit
Controls
Data Inspector
Surfacewireframe
Grid34×34
Variablesx, y
Governing equation
Reading this result: This surface is radially symmetric: it depends only on distance from the origin, so it looks the same from every direction around the vertical axis.
Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.
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How it works
The expression z = f(x, y) is parsed by PolySim's symbolic engine and evaluated across a grid, then drawn as a depth-sorted wireframe with a perspective orbit camera. It's the fastest way to build intuition for multivariable functions, gradients, and critical points.
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The math, the assumptions, real-world uses, or a code translation — explained for this exact simulation.
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Frequently asked questions
Is this 3D function plotter tool really free?▾
Yes. 3D Surface Plotter runs entirely in your browser using your device's own compute, so local use is free forever. You only pay Compute Tokens if you scale a job to the cloud.
Do I need to install anything?▾
No. Everything runs client-side in a modern browser — no downloads, no license, no account required to start.
Can I save or share my simulation?▾
Create a free account to save projects, and use a shareable embed or minted DOI to publish a live, interactive version anywhere.
How accurate are the results?▾
The solver uses established numerical methods, but results are for research and educational purposes and should be validated against experiment or professional review before you rely on them.