CALCULLA - Least squares method calculator: polynomial ...
https://calculla.com/polynomial_regressionFor polynomial degrees greater than one (n>1), polynomial regression becomes an example of nonlinear regression i.e. by function other than linear function. Using the least squares method, we can adjust polynomial coefficients {a 0, a 1, …, a n} \{a_0, a_1, \dots, a_n\} {a 0 , a 1 , …, a n } so that the resulting polynomial fits best to the ...