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https://github.com/bluescarni/mppp

Multiprecision for modern C++
https://github.com/bluescarni/mppp

c-plus-plus c-plus-plus-11 c-plus-plus-14 c-plus-plus-17 c-plus-plus-20 computer-algebra gmp math math-bignum mpfr multiprecision

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Multiprecision for modern C++

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# mp++

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    Multiprecision for C++

    


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mp++ is a C++11/14/17/20 library for multiprecision arithmetic,

featuring:



* arbitrary-precision integers,

* arbitrary-precision rationals,

* quadruple-precision floats,

* quadruple-precision complex numbers,

* arbitrary-precision floats,

* arbitrary-precision complex numbers.



Design goals include:



* excellent performance for small integer and rational

  operands,

* easy embeddability in computer algebra systems and

  generic C++ libraries,

* a large collection of arbitrary-precision special functions,

* an ergonomic API based on modern C++ idioms.



Design non-goals include:



* support for fixed-size wide integrals (i.e., no ``uint512_t``,

  try [Boost Multiprecision](https://www.boost.org/doc/libs/1_72_0/libs/multiprecision/doc/html/index.html)

  instead).



Built on top of the GNU multiprecision stack ([GMP](https://gmplib.org/),

[MPFR](https://www.mpfr.org), [MPC](http://www.multiprecision.org/mpc/)),

mp++ was initially conceived as a GMP wrapper with special focus on performance with

small operands. In particular, a small buffer optimisation and custom implementations of basic mathematical primitives are

instrumental in achieving a performance increase, with respect to GMP and other integer multiprecision libraries, which can be

substantial (see the [benchmarks](https://bluescarni.github.io/mppp/benchmarks.html) section of the documentation).



Over time, mp++ has accrued many additional features, including

multiprecision real and complex number types, and an expanding

library of special functions (built in part on top of the excellent

[Arb](https://arblib.org/) library).



mp++ is a spinoff of the [Piranha](https://github.com/bluescarni/piranha) library, released under the

[MPL2](https://www.mozilla.org/en-US/MPL/2.0/FAQ/) license.

If you are using mp++ as part of your research, teaching, or other activities, we would be grateful if you could star

the repository and/or cite our work. The DOI of the latest version and other citation resources are available

at [this link](https://doi.org/10.5281/zenodo.1043579).



The documentation is available [here](https://bluescarni.github.io/mppp/).