IF	Part of the IF... THEN statement. The computer only
	executes the instruction after THEN if the condition
	following IF evaluates TRUE.
INKEY ||	„Wait for a given time for a key depression, and
	produce the ASCII code for that key. The time is
	expressed in hundredths of a second.
INKEY$ (INK.) ||	Wait for a given time for a key depression, amd
	produce the character for that key. The time is
	expressed in hundredths of a second.
INPUT (I.)	Wait for an input or inputs from the keyboard
	terminated by RETURN.
INPUT LINE	Accepts, from the keyboard, a single input
	containing leading or trailing spaces or commas,
	terminated by RETURN.
INPUT# (I.#)	Input data from an open file and store the data in the
	variables following the INPUT# statement.
INSTR (INS.)	Search one string for occurrences of another string,
	and give the character position where the matching
	string begins.
INT	Function which converts a decimal number into the
	nearest integer smaller than the original number.
LEFT$( (LE.)	Extract the left part of a string.
LEN	Function which gives the length of a string.
LET	Set a variable to a given value. The use of LET is
	optional in BBC BASIC.
LIST (L.)	List the current program. LISTO sets the
	indentation options to make the program easier
	toread. LIST IF is used to list all lines containing a
	particular character sequence.
LN	Function which gives the natural logarithm of a
	number.
LOAD (LO.)	Load a BASIC program.
LOCAL (LOC.)	Declare the variables that follow as local only to that
	procedure or function. Thus they will not interfere
	with similarly named variables elsewhere in the
	program. Parameters passed to a procedure are
	automatically local.
App 6.4