The FF library written by Geert Jan van Oldenborgh

Installing

From source

Building from source requires make and a Fortran compiler (assumed to be set in your environment to FC). To build from source and install the library under <install target path> run

cd src/ff
make install FC=$FC FFLAGS="$FFLAGS -std=legacy -ffixed-line-length-none" DEST=<install target path>/lib --jobs

From conda-forge

FF is packaged and distributed on conda-forge for the following platforms:

To install and add ff-static to a project with pixi, from the project directory run

pixi add ff-static

and to install into a particular conda environment with conda, in the activated environment run

conda install --channel conda-forge ff-static

Citation

Please cite FF if used in your work by citing the following paper:

"New Algorithms For One Loop Integrals." G.J. van Oldenborgh, J.A.M. Vermaseren (NIKHEF, Amsterdam). Published in Z.Phys.C46:425-438,1990.

The preferred BibTeX entry for citation of FF is

@article{vanOldenborgh:1989wn,
    author = "van Oldenborgh, G. J. and Vermaseren, J. A. M.",
    title = "{New Algorithms for One Loop Integrals}",
    reportNumber = "NIKHEF-H/89-17",
    doi = "10.1007/BF01621031",
    journal = "Z. Phys. C",
    volume = "46",
    pages = "425--438",
    year = "1990"
}