Lagrange Interpolator Polynomial 1.0

Date Added: September 08, 2013 | Visits: 277

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The two inputs X and Y are vectors defining a set of N points. The function uses Lagrange's method to find the N-1th order polynomial that passes through all these points, and returns in P the N coefficients defining that polynomial. Then, polyval(P,X) = Y.R returns the x co-ordinates of the N-1 extrema/inflection points of the resulting polynomial (roots of its derivative), and S returns the value of the polynomial at those points.For a general-purpose way to find a smooth curve connecting points, you probably want to use SPLINE instead.

Requirements: No special requirements

Platforms: Matlab

Keyword: Derivative, Extremainflection, Generalpurpose, Resulting, Roots, Smooth, Spline

Users rating: 0/10

License: Shareware

Size: 20.48 KB

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