Scientific and Engineering Calculator     Currently being developed . Started 14-02-11 . Last updated :- 13-02-12 15:59 GMT . This is very much Work In Progress . I am only able to work on it in my spare time .   To Install   Download and install Qt4 .   Set your path vairable , in your environment variables , to include the Qt4 paths :- C:\Qt\2010.05\mingw\bin;C:\Qt\2010.05\qt\bin . This will allow the Qt4 DLL libraries to be used by the Calculator.exe program .   To Download and Run   Download the Calculator and run it .   This area will be regularly updated as it is being developed .   This project has been developed partially as a demonstration of Qt4 expertise .   Current Work   general updates     Project - source code .