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There's a homework problem that I've been struggling over:
Find a formula for the truncation error if we use 1 + x^2 + x^4 +x^6 to approximate 1/(1-x^2) over the interval (-1, 1).
Now, I assume that you need to use LaGrange error but I'm not sure how to proceed. Any help would be greatly appreciated.
Find a formula for the truncation error if we use 1 + x^2 + x^4 +x^6 to approximate 1/(1-x^2) over the interval (-1, 1).
Now, I assume that you need to use LaGrange error but I'm not sure how to proceed. Any help would be greatly appreciated.