Install libngraph0 by entering the following commands in the terminal:
sudo apt update sudo apt install libngraph0
Description:
library to create scientific 2-dimensional graphs
Ngraph is the program to create scientific 2-dimensional graphs for researchers and engineers. . This package contains library of ngraph-gtk.
Homepage: http://hito.music.coocan.jp/ngraph/ngraph-gtk.html
Version: 6.07.02-2build3
Section: universe/graphics