Exceptions

   Exceptional Argument                  Routine Behavior

   |x| = infinity                        Invalid argument
   (tand) |x| < (180/pi) * min_float     Underflow
   (tand) x = (2n+1) * 90                Overflow


   Data
   Type  Value for: (180/pi) * min_float

   F     Hexadecimal: 2EE10365
   G     Hexadecimal: C1F81A63A5DC006C
   S     Hexadecimal: 00000039
   T     Hexadecimal: 0000000000000039
   X     Hexadecimal: 00000000000000000000000000000039

   F     Decimal: 1.683772e-37
   G     Decimal: 3.187183529933798e-307
   S     Decimal: 8.028849e-44
   T     Decimal: 2.830787630910868e-322
   X     Decimal: 3.71000205951917569316937757202433432154392e-4964