A Precise Numerical Analysis Program A description is given of a program for computing the solution to a small number of standard numerical analysis problems to any specified accuracy, up to a limit of 2000 correct decimal places. Each computed number is bounded in an interval with a multiple precision midpoint. Arithmetic operations involving these numbers are executed according to interval arithmetic concepts, with non-significant digits automatically discarded. Details are supplied of problem specification and problem computation. CACM September, 1974 Aberth, O. interval arithmetic, multiple precision, list structure, error control 4.49 5.10 5.11 5.12 5.14 5.19 CA740903 JB January 17, 1978 9:01 AM 1258 4 2605 1292 4 2605 1497 4 2605 1975 4 2605 2555 4 2605 2605 4 2605 2605 4 2605 1026 5 2605 2286 5 2605 2605 5 2605 2605 5 2605 2605 5 2605