Numeric constants

A numeric constant consists of numeric and special characters, with no intervening spaces, that conform to the following rules:

• Integer -- The characters 0 - 9 without intervening spaces comprise a positive integer.
• Decimal -- A decimal point may be placed before, after, or within the numeric characters.
• Sign -- The first character of a number may be a plus or minus sign.
• Scientific notation -- A number may be suffixed by the letter E, an optional plus (default) or minus sign, and an integer.

The following table shows the acceptable formats for entering numbers.

Type of Number	Constant	Result
Decimal	.123	0.123
Integer	123	123
Negative number	-123.4	-123.4
Scientific notation	123E2, 123E-2	12300, 1.23