This is a scientific calculator that looks like the casio fx-991es plus. Everything was made with the QT ide and the C++ programming language. The app itself is actually just 220Kb, but it reqires some .dll file to run on your sysrem; To ensure the app runs smoothly please download everything. Once you download the whole folder, unzip it and click on the "calculator.exe" And it will run smoothly.
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Thanks Charles Cookey
PS: Still in progress.