This is scientific calculator for Android that has a twin Windows version.
If you like this Android scientific calculator you can download the twin Windows version here:
https://mega.nz/#!TM4GkYoD!zYXC0LcJomMR3TyT7AGYDV7u8Z6jN-gSRgkqGB9F0Xs
Both versions are exactly equal.
In this calculator each time you calculate a result is automatically copied to the clipboard, So you can use the numeric value in other applications.