Morgan has updated his graph calculation program for Nintendo DS.

Release notes:

I added graphing capabilities for up to four functions at once. Functions are now entered with the graph screen instead of having their own screen, I added a cursor for inputting functions, and functions are now easier to edit. Press GPH to access the graph screen/function editor, use the up and down keys to move between functions, and press ENT when you are finished editing them. Press the GPH key again to graph the functions.