From my lecture slides, the error expansion for trapezoidal rule was stated as 1 (even powers of h only) but from the taylor series expansion of the exact and trapezoidal rule 2, I can't derive this result.Can anybody help me with the proof as simple as possible?
closed as off-topic by Carlo Beenakker, Joe Silverman, Ben Barber, Pace Nielsen, Gerry Myerson Feb 11 at 20:51
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