fnval()
Curve Fitting
fnval() is a MATLAB®-compatible curve fitting function for evaluate a fit object, piecewise polynomial, or spline at query points xq. Run it online in your browser with SimLab — free, no install, no license required.
Evaluate a fit object, piecewise polynomial, or spline at query points xq.
Syntax
y = fnval(f, xq)
Examples — run fnval() in your browser
fnval(mkpp([0 1 2], [1 0; -1 1]), 1.5)▶ Run
See Also
Frequently Asked Questions about fnval()
Is the fnval() 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 fnval() and 510+ other MATLAB®-compatible function references at simulations4all.com/simlab.
Do I need to install MATLAB to use fnval()?
No. SimLab’s core parser, workspace state, and most functions run locally in your browser. The fnval() function requires no MATLAB® license or desktop software download.
What does fnval() do?
Evaluate a fit object, piecewise polynomial, or spline at query points xq. It is a MATLAB®-compatible curve fitting function available in SimLab with the same calling syntax as MATLAB® — typically: y = fnval(f, xq).
Can I run fnval() in my browser?
Yes. Open SimLab at simulations4all.com/simlab, write or paste code that calls fnval(), and run it. This function’s calculation runs locally in the browser. SimLab session analytics, sharing, feedback, and eligible acceleration have separate network boundaries.
Try SimLab — MATLAB®-compatible, free, in your browser
510+ functions. Runs in your browser. No install. No license.
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