Today I uploaded a new version of my Mat Calculator
( Kmat.exe ) and removed the 3 year old version.
It is now a "Windows GUI Program"
The graphical interface let me include scaled drawing
of the mat-boards and art-photo area from the input data.
You can see what the project will look like and if you
change values, and re-calculate, see what effect the
changes will have.
The software is small, fast, portable, and free.
It should run in Vista, Win-XP, 7, 8, 10.
Link to page with screen captures, download, and more information.