A floating point number (floating_point_literal) is a numeric literal that specifies a number as a floating point number.
Syntax
<floating_point_literal> ::= <mantissa>E<exponent> | <mantissa>e<exponent> <mantissa> ::= <fixed_point_literal> <exponent> ::= [<sign>][[<digit>]<digit>]<digit> <sign> ::= + | - <digit> ::= 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
Example
1e160
-765E-04