|Description:||Returns the absolute spacing of model numbers near the argument value.|
|Class:||Elemental function; Generic|
|Arguments:||X must be of type real.|
|Results:||The result type is the same as X. The result has the value be-p. Parameters b, e, and p are defined in Section D.2. If the result value is outside of the real model range, the result is TINY(X). (For information on TINY, see Section 9.3.156.)|
If 3.0 is a REAL(4) value, SPACING (3.0) has the value 2-22.