TYPE

decimal:
    <number>.[number]
    1.
    42.2

exponential:
    <number>.<e|E>[+|-]<number>
    1.0e3
    1.e3
    1.e+3
    1.e-3
    1.0E3

DESCRIPTION

A floating point number in the absolute range __FLOAT_MIN__ to __FLOAT_MAX__ (typically 1e-38 to 1e+38). Floating point numbers are signified by a ‘.’ appearing, e.g. ‘1’ is integer 1, but ‘1.’ is floating-point 1 .

decimal:

<number>.[number]

1.

42.2

exponential:

<number>.<e|E>[+|-]<number>

1.0e3

1.e3

1.e+3

1.e-3

1.0E3