On Android, consider checking out Graph 89 Free —though you’ll need a .ROM image for it to work (something you can extract from your existing graphing calculator or surely find elsewhere).

How to Make a Graph on Excel With a Cumulative Average. A cumulative average recalculates a data set's average as new data is added. During the recalculation all data contained in the data set is ...

Microsoft has chosen "graphing mode" as the first feature to be added to the Windows 10 Calculator app after open-sourcing the project on GitHub.