Multi precision portable calculator in C#, works with mono or VS.
Tested Ubuntu, FreeBSD, MacOS and Windows.
Windows binaries included in GMPCalcGTK\bin\x86\Debug
Compilation note: On Windows be sure to select x86 since it's GTK.
Each OS needs respective symbol defined for GMP and MPFR projects using Build options/symbols: WINDOWS, LINUX, FREEBSD or MACOS
Also, install included gtk-sharp-2.12.45.msi on Windows.
Credits to GMP and MPFR developers! Also Robert Baron (MachineCognitis) for his .Net libraries, which I've modified somewhat.