9.3.47 EPSILON (X)

Description:  Returns a positive model number that is almost negligible compared to unity in the model representing real numbers. 
Class:  Inquiry function; Generic 
Arguments:  X must be of type real; it can be scalar or array valued.  
Results:  The result is a scalar of the same type and kind parameters as X. The result has the value b1-p. Parameters b and p are defined in Section D.2


If X is of type REAL(4), EPSILON (X) has the value 2-23.

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