nodeeditor documentation

 From:  bemfarmer
9189.14 
In math node and in mathPts node, formulas, cos(a) does NOT equal cos[a].
sqrt(b) does NOT equal sqrt[b].
() yields the correct number.
[] yields the wrong number.
- Brian

(Now my .nod produces the correct geometry)

EDITED: 13 Jan 2019 by BEMFARMER