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# hw7 - Due CS 257(Luke Olson Homework#7 Problem 1 Problem 1...

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Due: October 23, 2008 CS 257 (Luke Olson): Homework #7 Problem 1 Problem 1 Consider the following table of values x 0 2 3 y 7 11 28 1. Write out the interpolating polynomial using a Lagrange basis. 2. Write out the interpolating polynomial using a Newton basis. 3. Rewrite your Newton polynomial so it can be evaluated efficiently using Horner’s method. 4. Simplify both the Newton and the Lagrange polynomials and show that you get the same polynomial regardless of the basis you use. Problem 2 Implement both divided difference.m and newton interp.m from the skeleton code given below. Run these programs on the table data given in the last problem. Show that your divided difference script returns results that agree with you hand computations in the previous problem. Show that your newton interp.m gives the same result as your theoretical polynomial when t = 4. Turn in all completed code and output showing these results.

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hw7 - Due CS 257(Luke Olson Homework#7 Problem 1 Problem 1...

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