operationsTest
  w 3+4*5,!           ; output: 35 - 3+4 is 7. 7*5 is 35
  w 3+(4*5),!         ; output: 23
  ;
  w 1+6/3**4,!        ; output: 29.642 - 1+6 is 7. 7/3 is 2.333. 2.333**4 is 29.642
  w 1+(6/3)**4,!      ; output: 81 - 6/3 is 2. 1+2 is 3. 3**4 is 81
  w 1 +(6/(3**4)),!   ; output: 1.074 - 3**4 is 81. 6/81 is 0.074. 1+074 is 1.074
  q