Microsoft Office Excel - Microsoft Office Excel is a commercial spreadsheet application.
GnuPlot - Gnuplot is a portable command-line driven interactive data and function plotting utility.
Google Sheets - Synchronizing, online-based word processor, part of Google Drive.
Giac/Xcas - Free computer algebra system
Apple Numbers - Numbers lets you build beautiful spreadsheets on a Mac, iPad, or iPhone — or on a PC using iWork for iCloud. And it’s compatible with Apple Pencil.
Geometry Pad - Geometry Pad is a dynamic geometry application for iPad and Android tablets.