Install libopenspecfun1 by entering the following commands in the terminal:
sudo apt update sudo apt install libopenspecfun1
collection of special mathematical functions (shared library)
Openspecfun provides AMOS and Faddeeva. . AMOS (from Netlib) is a portable package for Bessel Functions of a Complex Argument and Nonnegative Order; it contains subroutines for computing Bessel functions and Airy functions. . Faddeeva allows computing the various error functions of arbitrary complex arguments (Faddeeva function, error function, complementary error function, scaled complementary error function, imaginary error function, and Dawson function); given these, one can also easily compute Voigt functions, Fresnel integrals, and similar related functions as well. . This package contains a shared version of the library.