Returns the largest number in the model representing numbers of the same type and kind type parameter as the argument.
Inquiry function
Scalar of the same type and kind type parameter as X.
2DIGITS(X) - 1
(1.0 - 2.0-DIGITS(X)) *(2.0MAXEXPONENT(X))
HUGE (X) = (1D0 - 2D0**-53) * (2D0**1024) for X of type real(8).
HUGE (X) = (2**63) - 1 for X of type integer(8).