Transcription of ME 310 Numerical Methods Interpolation
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ME 310. Numerical Methods Interpolation These presentations are prepared by Dr. Cuneyt Sert Mechanical Engineering Department Middle East Technical University Ankara, Turkey They can not be used without the permission of the author 1. Interpolation Estimating intermediate values between precise data points. We first fit a function that exactly passes through the given data points and than evaluate intermediate values using this function. Polynomial Interpolation Spline Interpolation f(x) f(x). extrapolation Interpolation x x Polynomial Interpolation : A unique nth order polynomial passes through n points. Newton's Divided Difference Interpolating Polynomials Lagrange Interpolating Polynomials Spline Interpolation : Pass different curves (mostly 3rd order) through different subsets of the data points.
ME 310 Numerical Methods Interpolation These presentations are prepared by Dr. Cuneyt Sert Mechanical Engineering Department Middle East Technical University Ankara, Turkey csert@metu.edu.tr They can not be used without the permission of the author
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