Basically an equation editor, however not focused over one single equation, but you can write your mathematical artwork over several pages. Illustrate your equations using hand-drawing tools. Use symbolic calculator and function plotter.
esProc is a business computing software, which is professional in Big Data computation with high performance and simplifying complex data computation, reducing cost of software and hardware as well as management expenses
The Secure Spreadsheet is the first and only end-user program for encrypted secure computation: two parties with private inputs can compute without revealing anything but the output. An easy to use Excel Add-in: colour some cells and press a button.