Calc Prompter is an expression calculator. Calc Prompter has a built-in error recognition system that helps you get correct results. With Calc Prompter you can enter the whole expression, including brackets, and operators.
WinPresenter allows users to import Microsoft PowerPoint files or capture Microsoft Word, Excel, Adobe Acrobat and BMP, JPG, and GIF image files. WinPresenter records what users are writing and drawing onto the imported/captured files.
E-prompter 
