Biography matlab function references
Matlab profiler self time
Since polyfit is a basic Matlab function, you could reference the Matlab Function Reference book (pdf) for the version of Matlab you are using.
Parfor (matlab)
Plot Gallery: Tasks (Live Editor) Live Editor tasks are apps that can be added to a live script to interactively perform a specific set of operations.
History of matlab
Select a Site.
When was matlab invented
If it is code from MATLAB (not from the File Exchange) you can: Just cite MATLAB; Get the bibliography of the theory from the "References" section of the documentation; If it is .