Walsh, J. L.; Sewell, W. E. Note on degree of approximation to an integral by Riemann sums. (English) Zbl 0016.29901 Am. Math. Mon. 44, 155-160 (1937). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 4 Documents Keywords:Approximation of functions, orthogonal series developments PDF BibTeX XML Cite \textit{J. L. Walsh} and \textit{W. E. Sewell}, Am. Math. Mon. 44, 155--160 (1937; Zbl 0016.29901) Full Text: DOI