def polyfit( (xvec, yvec), degree=2 ):
    return Mat([ [x**n for n in range(degree,-1,-1)] for x in xvec ]).solve(Vec(yvec))
:param parser: Django template parser
dataset/ETHPy150Open sunlightlabs/clearspending/completeness/statlib/matfunc.py/polyfit--crossover with--dataset/ETHPy150Open yetty/django-embed-video/embed_video/templatetags/embed_video_tags.py/VideoNode.__init__