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In [3]: import numpy as np x = [1, 3, 4, 5, 6, 7, 8] y = [i*i for i in x] np.polyfit(x, y, 2)
import numpy as np x = [1, 3, 4, 5, 6, 7, 8] y = [i*i for i in x] np.polyfit(x, y, 2)
Out[3]: array([ 1.00000000e+00, 5.70919174e-15, -8.14710295e-15])
array([ 1.00000000e+00, 5.70919174e-15, -8.14710295e-15])
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