" <------------------------- sam044.txt ---------------------------->
  x#4 -5
" <-- conjugate ---------------------------------------------------->
  +x
" <-- negative ----------------------------------------------------->
  _x
" <-- reciprocal --------------------------------------------------->
  %x
" <-- signum (sign) ------------------------------------------------>
  X -3 0 4
" <-- magnitude (absolute value) ----------------------------------->
  | -3 0 4
)off