Install libgmm++-dev by entering the following commands in the terminal:
sudo apt update sudo apt install libgmm++-dev
Description:
Generic C++ template library for sparse, dense and skyline matrices
GMM++ is a framework of pre-defined methods for matrix computation. It is built as a set of generic algorithms for any interfaced vector type or matrix type. . It can be viewed as a glue library allowing cooperation between several vector and matrix types. However, basic sparse, dense and skyline matrix/vector types are built-in, hence it can be used as a standalone linear algebra library.
Homepage: http://home.gna.org/getfem/
Version: 5.2+dfsg1-6
Section: universe/libdevel