Numeric.Limits

Various floating point limit related numerical constants.

Significant digits

digits10 :: RealFloat a => a -> Int

The number of decimal digits that the type can represent without loss of precision.

Minimum difference

epsilon :: RealFloat a => a

The difference between 1 and the smallest value greater than 1 that is representable for the type.

Extreme finite values

maxValue :: RealFloat a => a

The maximum finite value for the type.

minValue :: RealFloat a => a

The minimum (positive) normalized value for the type.

Abnormal values

infinity :: RealFloat a => a

Infinity value if the type supports it.

nan :: RealFloat a => a

Not-a-number value if the type supports it.