Returns a positive model number that is almost negligible compared to unity 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.
2.0ei01 - DIGITS(X)
where ei is
the exponent indicator (E, D, or Q) depending on the type of X:type EPSILON(X)
---- ----------
real(4) 02E0 ** (-23)
real(8) 02D0 ** (-52)
real(16) 02Q0 ** (-105)
EPSILON (X) = 1.1920929E-07 for X of type real(4). See Real data model.