spline()

Core Math

spline() is a MATLAB®-compatible core math function for not-a-knot cubic spline interpolation. exact at data points, smooth c2 everywhere. Run it online in your browser with SimLab — free, no install, no license required.

Not-a-knot cubic spline interpolation. Exact at data points, smooth C2 everywhere.

Syntax

spline(x, y, xq)

Examples — run spline() in your browser

spline([0, 1, 2, 3], [0, 1, 4, 9], [0.5, 1.5, 2.5])
▶ Run

See Also

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Frequently Asked Questions about spline()

Is the spline() function free to use in SimLab?

The browser workspace requires no MATLAB® license or installation. Connected features require network access and may have account, tier, availability, or usage limits. You can open spline() and 510+ other MATLAB®-compatible function references at simulations4all.com/simlab.

Do I need to install MATLAB to use spline()?

No. SimLab’s core parser, workspace state, and most functions run locally in your browser. The spline() function requires no MATLAB® license or desktop software download.

What does spline() do?

Not-a-knot cubic spline interpolation. Exact at data points, smooth C2 everywhere. It is a MATLAB®-compatible core math function available in SimLab with the same calling syntax as MATLAB® — typically: spline(x, y, xq).

Can I run spline() in my browser?

Yes. Open SimLab at simulations4all.com/simlab, write or paste code that calls spline(), and run it. This function’s calculation runs locally in the browser. SimLab session analytics, sharing, feedback, and eligible acceleration have separate network boundaries.

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