Ben Granett (https://github.com/bengranett/pypelidcalc)
The calculator may be used as a web app by launching the notebook from mybinder.org.
Just click the button:
jupyter nbextension install --py widgetsnbextension --sys-prefix jupyter nbextension enable widgetsnbextension --py --sys-prefix
jupyter nbextension install --py plotlywidget --sys-prefix jupyter nbextension enable plotlywidget --py --sys-prefix
jupyter nbextension enable --py --sys-prefix appmode jupyter serverextension enable --py --sys-prefix appmode