Search notes:
least squares
Least squares is used
regression analysis
to approximate the solution of
overdetermined systems
(more equations than unknowns).
The algorithms are typically applied to
data fitting
problems
Two categories
ordinary least squares (has a closed-form solution)
nonlinear least squares (usually solved by iterative refinement)
Note: The terms
linear regression
and
least squares
are closely linked; but they're not synonyms.
Index