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1.78.2 FloatD class: characterization

decimalDigits
Return the number of decimal digits of precision for a FloatD. Technically, if P is the precision for the representation, then the decimal precision Q is the maximum number of decimal digits such that any floating point number with Q base 10 digits can be rounded to a floating point number with P base 2 digits and back again, without change to the Q decimal digits.


emax
Return the maximum allowable exponent for a FloatD that is finite.


emin
Return the maximum allowable exponent for a FloatD that is finite.


fmax
Return the largest normalized FloatD that is not infinite.


fminNormalized
Return the smallest normalized FloatD that is > 0


infinity
Return a FloatD that represents positive infinity.


nan
Return a FloatD that represents a mathematically indeterminate value (e.g. Inf - Inf, Inf / Inf).


negativeInfinity
Return a FloatD that represents negative infinity.


precision
Answer the number of bits in the mantissa. 1 + (2^-precision) = 1