o++o

o++o or ottoPS (ottoprogramming language) is essentially a simple but powerful query language, but also enables calculations in a wide range of applications.
o++o uses repeating groups (hierarchies) and has powerful but easy-to-use operators for selecting, restructuring, calculating and combining tables and documents.
o++o can be used to write 5-line programs for which EXCEL requires more than 6 worksheets. The new o++o version allows you to calculate independently of the internet. All tables and programs can be saved on the mobile phone (tablet) and later expanded and modified. We hope that this o++o app will replace calculators. The programming language o++o of this app can also be used under Linux and Windows. Then queries to databases and Wikipedia can be formulated and visualized.