Wikipedia: History of Forth programming language

Difference (from prior major revision) (minor diff, author diff)

Changed: 3c3,5

Forth relies heavily on explicit use of the stack? data structure and [Reverse Polish notation]?. For example, one could get the result of a mathematical expression this way:

(There were about a zillion dialects of FORTRAN in the 1960s that differed in every conceivable respect including fundamental stuff like IF statement syntax and how exponents in scientific notation were represented. A five character identifier length would have been mild compared to some of the other portability issues).

Forth relies heavily on explicit use of the stack? data structure and [Reverse Polish notation]? (or RPN?, also used on advanced calculators from Hewlett-Packard). For example, one could get the result of a mathematical expression this way:

	Revision 6 . . (edit) November 19, 2001 1:03 am by (logged).177.52.xxx
	Revision 5 . . (edit) November 18, 2001 6:18 pm by Don Kenney [Added commentary]
	Revision 4 . . November 18, 2001 6:05 pm by Don Kenney
	Revision 3 . . (edit) October 23, 2001 5:39 pm by (logged).37.81.xxx [5 letter not because of Fortran.]