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Category Archives: Least Squares
Least Squares Trilateralization – 2D
Trilateralization is basically a distancedistance intersection using two or more points and corresponding measurements from them to an unknown point. Working with just two points can yield 0, 1 or 2 solutions. Case 1: No Solutions Given Two points with … Continue reading
Posted in Least Squares, Math
Tagged Example, Least Squares, MathCAD, MathCAD Program, Trilateralization
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Conformal Geometric Least Squares
I expect this to be the first in a series of articles detailing geometric least squares. By geometric least squares I mean fitting measurements to equations, or coordinates to equations or a combination there of. Getting started we will assume that … Continue reading
Posted in Least Squares
Tagged coordinates, Data Modeling, Equation Fitting, Form Fitting, Least Squares, parabola
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Weighted / Nonweighted Quadratic Curve Fit to Point Set
While reading Walking Randomly yesterday, I came about this post on polynomial fitting with MATLAB, which went along with something I was working on in MathCAD and the next thing I new I worked the problems long hand, figured I … Continue reading
Posted in Least Squares, Math
Tagged Curve Fitting, Least Squares, Polynomial Least Squares
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Least Squares Intro
There are many ways to approach modeling data and the one I am going to present here I was taught at ETSU in a class called, at the time, Advanced Surveying Mathematics. It is rooted in the realm of Linear … Continue reading