This is a simple console application with the ability to take input variables and output the results.
These pages display images of the application and output and explain the uncertain functions: https://github.com/ReDuzed/DPS-Calculator/wiki
If whoever looking is not trusting of this particular program, there is a way to compile it manually. Microsoft has included a CS compiler in the .NET Framework 4.0 directory. In this case, it takes a fairly simply .bat or .cmd file to automate compiling it. The file in question is also included. It will take the .cs file and output an .exe file.
To further investigate, the .cs file can be viewed to examine it for anything whoever might be undesirable.
This is only mentioned with possibility that not all programs are well-intentioned. Also, since it's such a small program, it could lead to questions of its safety.
The only required file is the Program.cs file; the optional file for ease of compiling is the file aptly named compile.cmd.
For those looking to find ways for improving it can refer to this place in order to do so: https://github.com/ReDuzed/DPS-Calculator/issues