Suppose you have a function f(x)=cos(x) and two nodes 0 and π2 .    1) Find the interpolation polynomial of the given function and nodes using the Vandermonde matrix method.  2) Roughly hand-draw a comparison graph between f(x) and the interpolating polynomial.  3) Compute the actual interpolation error at x=0 .

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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Suppose you have a function f(x)=cos(x) and two nodes 0 and π2 .

 

 1) Find the interpolation polynomial of the given function and nodes using the Vandermonde matrix method.

 2) Roughly hand-draw a comparison graph between f(x) and the interpolating polynomial.

 3) Compute the actual interpolation error at x=0 .

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