Install ruby-ngraph by entering the following commands in the terminal:
sudo apt update sudo apt install ruby-ngraph
Description:
Library for using ngraph-gtk Ruby programs
This library provides an API to use ngraph-gtk. Ngraph is the program to create scientific 2-dimensional graphs for researchers and engineers. This program can create advanced graphs which can't be created by spreadsheets. Graphs can be exported to postscript. . This package contains a library for using ngraph-gtk in Ruby programs.
Homepage: http://hito.music.coocan.jp/ngraph/ngraph-gtk.html
Version: 6.07.02-2build3
Section: universe/ruby