qd
Double-double and quad-double library
This package supports both a double-double datatype (approx. 32 decimal digits) and a quad-double datatype (approx. 64 decimal digits). The computational library is written in C++. Both C++ and Fortran-90 high-level language interfaces are provided to permit one to convert an existing C++ or Fortran-90 program to use the library with only minor changes to the source code. In most cases only a few type statements and (for Fortran-90 programs) read/write statements need to be changed. PSLQ and numerical quadrature programs are included.
- Versions: 2.3.24
- Website: https://www.davidhbailey.com/dhbsoftware/
- Licenses: Modified BSD
- Package source: gnu/packages/multiprecision.scm
- Builds: See build status
- Issues: See known issues
Installation
Install the latest version of qd as follows:
guix install qd
Or install a particular version:
guix install qd@2.3.24
You can also install packages in augmented, pure or containerized environments for development or simply to try them out without polluting your user profile. See the guix shell documentation for more information.
Badge code
You can use the following badge to inform users of qd about the latest version available in Guix.
Example HTML:
<a href='https://packages.guix.gnu.org/packages/qd'><img src='https://packages.guix.gnu.org/packages/qd/badges/latest-version.svg' alt='Version in GNU Guix'></a>
Example Markdown:
[](https://packages.guix.gnu.org/packages/qd)
Example Org:
[[https://packages.guix.gnu.org/packages/qd][https://packages.guix.gnu.org/packages/qd/badges/latest-version.svg]]