lsqnonlin()

Optimization

lsqnonlin() is a MATLAB®-compatible optimization function for nonlinear least-squares solver. minimizes sum(f(x).^2) starting from x0 using the levenberg-marquardt algorithm (alias for sl_leastsquares). runs in-browser. Run it online in your browser with SimLab — free, no install, no license required.

Nonlinear least-squares solver. Minimizes sum(f(x).^2) starting from x0 using the Levenberg-Marquardt algorithm (alias for sl_leastSquares). Runs in-browser.

▶ Try lsqnonlin() in SimLab — Free

Syntax

x = lsqnonlin(f, x0)

[x, resnorm] = lsqnonlin(f, x0)

Examples — run lsqnonlin() in your browser

lsqnonlin(@(x) [x(1)-1, x(2)-2], [0, 0])

▶ Run

xdata = [0 1 2 3]; ydata = [1 0.7 0.5 0.3]; lsqnonlin(@(b) b(1)*exp(-b(2)*xdata) - ydata, [1, 1])

▶ Run

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Frequently Asked Questions about lsqnonlin()

Is the lsqnonlin() 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 lsqnonlin() and 510+ other MATLAB®-compatible function references at simulations4all.com/simlab.

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

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

What does lsqnonlin() do?

Nonlinear least-squares solver. Minimizes sum(f(x).^2) starting from x0 using the Levenberg-Marquardt algorithm (alias for sl_leastSquares). Runs in-browser. It is a MATLAB®-compatible optimization function available in SimLab with the same calling syntax as MATLAB® — typically: x = lsqnonlin(f, x0).

Can I run lsqnonlin() in my browser?

Yes. Open SimLab at simulations4all.com/simlab, write or paste code that calls lsqnonlin(), 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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