MATLAB: Curve fitting tool is from which matlab version existing

cftoolcurve fitting toolMATLAB

curve fitting tool is from which matlab version existing (built in Matlab) ? /on Windows system/ in older ML version is still can type and call ? :
>>cftool

Best Answer

It's been around for a very long time but requires the Curve Fitting Toolbox. If you can't find it, not having that toolbox installed is likely the culprit.
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