Creates a deep copy of this weighted least squares instance.

Determines whether the specified Object is equal to the current Object.

Serves as a hash function for a particular type.

Gets the Type of the current instance.

Computes the 2-norm squared of the residual vector.

Computes and returns the residual vector.

Performs necessary computations for a change of weights.

Compute the solution to the weighted least squares problem.

Returns a String that represents the current Object.

Gets the matrix A used in the calculation.