Constants

Real constants

Real constants are often called Floating Point constants.

It has three parts:

1. A sign (+ or -) preceding the number portion (optional).

2. A number portion (representing the base).

3. An exponent portion following the number portion (optional). This starts with E or E followed by an integer. The integer may be preceded by a sign.

A real constant must have at least one digit. It must have a decimal point. It could be either positive (default) or negative. No commas and blank are allowed within a real constant.

Some example of real constants:

: +.72

: +72

: +7.6E+2

: 24.4e-5