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The division, subtraction, and multiplication operators can only be used with numeric operands. The operands can be variables, constants, or subexpressions. A formula error occurs if:

• the result of subtraction is too large a negative number

• the result of multiplication is too large

• the second operand of a division evaluates to zero

The addition operator can be used with numeric or text operands. If the result is greater than 240 characters, a formula error occurs.

Notice that you enclose text constants in single forward quotes only ('), not double quotes ("). For example, the statements:

	string1 = 'will '

	result_string = 'Pigs ' + string1 + 'fly'

set the local variable result_string to 'Pigs will fly'.