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GMP is a free library for arbitrary precision arithmetic, operating on signed integers, rational numbers, and floating point numbers. There is no practical limit to the precision except the ones implied by the available memory in the machine GMP runs on. GMP has a rich set of functions, and the functions have a regular interface.
MPInteger is an Objective-C wrapper for the integer portions of the gmp library. It was really designed to provide a "nice" way to work with large integers in Objective-C, with motivation provided by a cryptography course taught by Tino Tamon at Clarkson University.
The accurate calculation and tabulation of high-order quadrature rules (eg Gauss-Legendre, Gauss-Jacobi, etc.) is essential in many areas of numerical analysis. Standard double-precision arithmetic is typically only sufficient to obtain 14 (or fewer) digits of accuracy in the points and weights ... [More]