" <------------------------- sam050.txt ---------------------------->
" <--- Pi times ---------------------------------------------------->
  O 1 2 .5
" <--- Circular (sin, cos, tan, asin, acos, atan ) ----------------->
  pi # O 1
  -1 O L # 1 O L # pi % 2 3 4
  -2 O L # 2 O pi % 2 3 4
  -3 O L # 3 O pi % 3 4
)off