PPolySim OS

Optimization + Uncertainty

Find the minimum of a function by gradient descent, then quantify how uncertainty in the input propagates to the output — the two workflows behind real engineering design.

Optimization + Uncertainty StudioLive

Controls

Presets

▶ Run in Python

Data Inspector

Minimum x-1.3008
f(x) at min-3.5139
Output mean-2.308
Output σ2.207
5–95%-3.51 … 1.44

Governing equation

Reading this result: Descent from x₀ = 2.5 settled at x ≈ -1.30. With input σ = 0.4, the output spreads to about 2.21 — uncertainty stays tight near a flat minimum but gets amplified where the curve is steep.

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How it works

Gradient descent uses a numerical gradient to walk downhill to a local minimum, drawing its path on the curve. Monte-Carlo uncertainty quantification then samples the input from a normal distribution around that optimum and reports the mean, standard deviation, and 5–95% band of the output — exactly how engineers turn a nominal design into a robust one.

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Frequently asked questions

Is this optimization and uncertainty quantification tool really free?▾
Yes. Optimization + Uncertainty 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.