I am using Polynomial.fit and get the following polynomial:
polynomial.str() '0.8447708645677164 - 0.09751307764485126 x1 - 0.039531273903863295 x2'
but when I perform
polynomial(0), it shows 0.9027526683087044.
But I thought if we input 0 into x, shouldn't it be 0.8447708645677164 instead?