Finding polynomials from a set of coordinates

03122017, 01:49 PM
Post: #10




RE: Finding polynomials from a set of coordinates
(03112017 10:25 AM)grsbanks Wrote: ... One thing you need to know is that you need n+1 points to fit a polynomial of degree n. Eg. you need 2 points to fit a line (a.x + b = 0), 3 points to fit a quadratic (a.x^{2} + b.x + c = 0) etc... Clarification  I always use three or more cartesian coordinates for a curve fit because a) two coordinates, by DEFINITION, are the endpoints of a line segment {either rectilinear or curvilinear} and b) a single coordinate fails the basic definition of a line segment. Alibis? BEST! SlideRule 

« Next Oldest  Next Newest »

User(s) browsing this thread: 1 Guest(s)