Mpfr

Library for multiple-precision floating-point computations

The MPFR library is a C library for multiple-precision floating-point computations with exact rounding also called correct rounding. It is based on the GMP multiple-precision library.

The main goal of MPFR is to provide a library for multiple-precision floating-point computation which is both efficient and has a well-defined semantics. It copies the good ideas from the ANSI/IEEE-754 standard for double-precision floating-point arithmetic 53-bit mantissa.

WWW http//www.mpfr.org/