Units and Letter-like Symbols

Units and letter-like mathematical symbols.

Mathematica CalcCenter treats or \[Degree] as the symbol Degree, so that, for example, 30 is equivalent to 30 Degree.
Note that , and are all distinct from the ordinary letters (\[Mu]), (\[CapitalARing]) and (\[CapitalOSlash]).
Mathematica CalcCenter interprets as Infinity, as E, and both and as I. The characters , and are provided as alternatives to the usual upper-case letters E and I.
and are not by default assigned meanings. You can therefore use to represent a pi that will not automatically be treated as Pi.

Operators that look like letters.