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LBOUND (see Chapter 2)
Use
The LBOUND function maybe used to determine the lower bound of one of the
dimensions of an array. (See also LOWER.)
Syntax LOWER)actual-array[, index-number)I
where index-number must be an integer-expression.in the range ito 7.

LCASE$ (see Chapter 4)
Use The LCASES function converst characters to lower case. (See also LOWERs.)
Syntax LCASESlargumentl
where argumentis a string-expression

LEFT (see Chapter 12)
Use
LEFT changes the current heading. (See also LT, RIGHT and RT.)
Syntax
LEFT [I/stream-number, I angle-change
where
angle-change is a numeric-expression.
LEFT$ (see Chapter 4)
Use LEFTS isa functionto truncate a string by selecting only its leftmost characters. Syntax LEFTSIargument, length)
where
argumentis a string-expression and length is an integer-expression returning a value in the
range 0.4096.

LEN (see Chapter 4)
Use LEN is afunctionto find the length of a string. (How long isa piece of string?) Syntax LEN)argument)
where argumentis a string-expression

LET (see Chapter 2)
Use LET assigns the value of an expression to a general—variable. Syntax [LET)general—variable = expression

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