ERR		Give the error number of the last error.
ERROR	(ERR.)	Part of the ON...ERROR statement.
EVAL	(EV.)	Function which evaluates a string as if it were a
		BASIC calculation.
EXP		Function which calculates e (which is 2.7183...)
		raised to the given power.
EXT#		Function which controls the length (extent) of an
		open file.
FALSE	(FA.)	Function returning the value 0. Used in logical
		expressions.
FN		Used in the definition of a function or a call to that
		function.
FOR	(F.)	Start of the FOR--NEXT loop which causes the
		computer to repeatedly execute the statements
		between the FOR and the NEXT...
GCOL	(GC. )	Set the graphics colour to be used by future graphics
		commands, and determine the way the colour
		interacts with the colour of any point in the same
		position on the screen.
GET		Wait for a key to be pressed and produce the ASCII
		code for that key.
GET$		Wait for a key to be pressed and produce the
		character for that key.
GOSUB	(GOS.)	Execute a subroutine, then return control to the
		statement following the GOSUB call. GOSUB is a
		more limited predecessor of DEFPROC, and does not
		allow the passing of parameters. It is included for
		compatability with the BASIC language on other
-		computers.
GOTO	(G.)	Jump to the given line number.
HIMEM	(H.) ||	Variable used to indicate the highest free memory
		location which can be used by the current program.
		HIMEM can be reset by the user so as to protect a
		portion of memory above HIMEM where data has
		been stored.
App 6.3