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python2/3: compute polyfit (1D, 2D, N-D) without thirdparty libraries
python2/3: compute polyfit (1D, 2D, N-D) without any thirdparty library like numpy, scipy etc.
also can be used for leastsquares solution computation and for A=QR matrix decomposition.
Tested with python 2.7 and 3.4
Consider donating to this project: https://sourceforge.net/p/purepythonpolyfit/donation
For a Sample use, refer to the WIKI