Non Linear, Regression, Data Science, Python, Least Squares.
variables x1, x2,…xn, RSS needs to be partially differentiated w.r.t. each one of these β_cap_j coefficients and each equation set to zero. For example, the partial differentiation of RSS w.r.t. β_cap_1 goes as follows: Partial differentiation of Residual Sum of Squares w.r.t. coefficient β_1