But that is the Euler–Mascheroni constant which is normally denoted by gamma. There is a footnote on https://en.wikipedia.org/wiki/Letterlike_Symbols https://e

But that is the Euler–Mascheroni constant which is normally denoted by gamma. There is a footnote on https://en.wikipedia.org/wiki/Letterlike_Symbols https://en.wikipedia.org/wiki/Letterlike_Symbols that says: > It's unknown which constant this is supposed to be. Xerox standard XCCS 353/046 just says 'Euler's'. See also this discussion on math stackexchange: https://math.stackexchange.com/a/3123704 https://math.stackexchange.com/a/3123704