Why do characters get interpreted as algebraics?

[Dave Britten]

(05-21-2014 05:26 PM)HP67 Wrote:  I understand + concatenates.

I just didn't get it that concatenating an empty string with an algebraic results in a string quoted as I wanted in this case.

Edit: actually, it doesn't. It seems to only work with algebraics that aren't really algebraic in that they can't be resolved.

For example 'SIN' errors out and doesn't even get to the stack. 'SINO' does.

Is there some type of object that is single quoted that isn't an algebraic?

There are a few different object types that are represented with single quotes:

Algebraic: 'X+2', TYPE = 9
Global name: 'PPAR', TYPE = 6
Local name: 'XSTP', TYPE = 7

Local names are defined with the -> operator in programs.