Visual Node Graph
Build a simulation the way you think about it — wire blocks together and watch the whole graph recompute live. Drag a node's output onto another node's input to connect them.
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Node Graph— drag a node header to move · drag an output ● onto an input ○ to wire
Range
x
min-10
max10
steps300
Expression f(x)
x
f(x)
Derivative d/dx
x
f'(x)
Plot
series A
series B
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How it works
This is a real dataflow engine: each node has typed input and output ports, edges carry scalars or series between them, and the graph is evaluated in topological order every time you change a value. The Expression and Derivative nodes are powered by PolySim's symbolic CAS, so wiring f(x) into a Derivative node computes the exact symbolic derivative and plots it alongside the original — no numerical approximation.
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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 node graph editor tool really free?▾
Yes. Visual Node Graph 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.