PPolySim OS

Symbolic Math (CAS)

Type any function and get its exact derivative, a simplified form, numeric roots, and a live plot of both the function and its derivative — a real computer-algebra engine, in your browser.

Symbolic Math (CAS) StudioLive

Controls

simplified: sin(x)*exp(-x/6)
d/dx: cos(x)*exp(-x/6) + sin(x)*exp(-x/6)*-0.166667
∫ dx: no elementary antiderivative
▶ Run in Python

Data Inspector

Parsed✓ valid
Root in [-10,10]0.0000
Functionssin cos tan exp ln √ …
Reading this result: f crosses zero near x = 0.00: that root is exactly where the cyan f(x) curve meets the x-axis, and where its slope f'(x) tells you how sharply it passes through.

Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.

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How it works

This is a genuine computer-algebra system: a tokenizer and Pratt parser build an expression tree, symbolic differentiation applies the product, quotient, and chain rules, and an algebraic simplifier reduces the result to a fixed point. Roots are found numerically by bisection, and the plot samples the compiled expression across the domain. No server round-trips — the algebra runs entirely on your device.

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Frequently asked questions

Is this symbolic math tool really free?
Yes. Symbolic Math (CAS) 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.