fittype()
Curve Fitting
fittype() is a MATLAB®-compatible curve fitting function for construct a fit model: a library name (e.g. 'poly3', 'exp1') or a custom expression in x with coefficients (e.g. 'a*x^2 + b'). Run it online in your browser with SimLab — free, no install, no license required.
Construct a fit model: a library name (e.g. 'poly3', 'exp1') or a custom expression in x with coefficients (e.g. 'a*x^2 + b').
Syntax
ft = fittype(expr)
ft = fittype('poly2')Examples — run fittype() in your browser
fittype('a*sin(b*x)')▶ RunSee Also
Frequently Asked Questions about fittype()
Is the fittype() function free to use in SimLab?
Yes. SimLab is 100% free — no signup, no license, and no usage limits. You can run fittype() and 510+ other MATLAB®-compatible functions directly in your browser at simulations4all.com/simlab.
Do I need to install MATLAB to use fittype()?
No. SimLab runs entirely in your web browser with zero installation. The fittype() function works without any MATLAB® license or software download.
What does fittype() do?
Construct a fit model: a library name (e.g. 'poly3', 'exp1') or a custom expression in x with coefficients (e.g. 'a*x^2 + b'). It is a MATLAB®-compatible curve fitting function available in SimLab with the same calling syntax as MATLAB® — typically: ft = fittype(expr).
Can I run fittype() in my browser?
Yes. Open SimLab at simulations4all.com/simlab, write or paste code that calls fittype(), and run it. Execution happens locally in your browser — no data leaves your machine.
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510+ functions. Runs in your browser. No install. No license.
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