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-
- THE GNU MP LIBRARY
-
-
-GNU MP is a library for arbitrary precision arithmetic, operating on signed
-integers, rational numbers, and floating point numbers. It has a rich set of
-functions, and the functions have a regular interface.
-
-GNU MP is designed to be as fast as possible, both for small operands and huge
-operands. The speed is achieved by using fullwords as the basic arithmetic
-type, by using fast algorithms, with carefully optimized assembly code for the
-most common inner loops for lots of CPUs, and by a general emphasis on speed
-(instead of simplicity or elegance).
-
-GNU MP is believed to be faster than any other similar library. Its advantage
-increases with operand sizes for certain operations, since GNU MP in many
-cases has asymptotically faster algorithms.
-
-GNU MP is free software and may be freely copied on the terms contained in the
-files COPYING.LIB and COPYING (most of GNU MP is under the former, some under
-the latter).
-
-
-
- OVERVIEW OF GNU MP
-
-There are five classes of functions in GNU MP.
-
- 1. Signed integer arithmetic functions (mpz). These functions are intended
- to be easy to use, with their regular interface. The associated type is
- `mpz_t'.
-
- 2. Rational arithmetic functions (mpq). For now, just a small set of
- functions necessary for basic rational arithmetics. The associated type
- is `mpq_t'.
-
- 3. Floating-point arithmetic functions (mpf). If the C type `double'
- doesn't give enough precision for your application, declare your
- variables as `mpf_t' instead, set the precision to any number desired,
- and call the functions in the mpf class for the arithmetic operations.
-
- 4. Positive-integer, hard-to-use, very low overhead functions are in the
- mpn class. No memory management is performed. The caller must ensure
- enough space is available for the results. The set of functions is not
- regular, nor is the calling interface. These functions accept input
- arguments in the form of pairs consisting of a pointer to the least
- significant word, and an integral size telling how many limbs (= words)
- the pointer points to.
-
- Almost all calculations, in the entire package, are made by calling these
- low-level functions.
-
- 5. Berkeley MP compatible functions.
-
- To use these functions, include the file "mp.h". You can test if you are
- using the GNU version by testing if the symbol __GNU_MP__ is defined.
-
-For more information on how to use GNU MP, please refer to the documentation.
-It is composed from the file gmp.texi, and can be displayed on the screen or
-printed. How to do that, as well how to build the library, is described in
-the INSTALL file in this directory.
-
-
-
- REPORTING BUGS
-
-If you find a bug in the library, please make sure to tell us about it!
-
-You should first check the GNU MP web pages at http://www.swox.com/gmp/,
-under "Status of the current release". There will be patches for all known
-serious bugs there.
-
-Report bugs to bug-gmp@gnu.org. What information is needed in a good bug
-report is described in the manual. The same address can be used for
-suggesting modifications and enhancements.
-
-
-
-
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