slatec
There are 4 repositories under slatec topic.
jacobwilliams/quadpack
Modern Fortran QUADPACK Library for 1D numerical quadrature
jacobwilliams/ddeabm
Modern Fortran implementation of the DDEABM Adams-Bashforth algorithm
jacobwilliams/PCHIP
Modern Fortran Piecewise Cubic Hermite Interpolation Package
lloda/slatec-bessel-cpp
A translation of part of SLATEC to C++, enough to compute Bessel functions of complex arguments.