Install libdeal.ii-8.5.1 by entering the following commands in the terminal:
sudo apt update sudo apt install libdeal.ii-8.5.1
Description:
Finite Element Differential Equations Analysis Library
deal.II is a C++ program library targeted at the computational solution of partial differential equations using adaptive finite elements. It uses state-of-the-art programming techniques to offer you a modern interface to the complex data structures and algorithms required. . This package contains the shared libraries.
Homepage: http://www.dealii.org/
Version: 8.5.1-3
Section: universe/libs