Representation of NaN (Not a Number).
Source position: syshelph.inc line 819
| public const TExtendedHelper.NaN: Extended = 0.0 / 0.0; | 
NaN is the Representation of NaN (Not a Number) for a Extended-sized floating point type.
| 
 | Largest possible value for the Extended floating point type. | |
| 
 | Smallest (negative) possible value for the Extended floating point type. | |
| 
 | Precision for this floating point type. | |
| 
 | Positive infinity as represented by a Extended floating point type. | |
| 
 | Negative infinity as represented by a Extended floating point type. |