CC41 RPN Calculator

[John Galt]

No error. It is not anything the Mac recognizes as a launchable app.

Its file type is a generic document, which can be opened with BBEdit or your favorite text editor. Terminal does not recognize it as a command, so there is a step missing before it can be launched or executed.

Tested on macOS 11.7.2 (Intel) and 13.1 (M1).