NG - Not Greater Than The Not Greater Than (NG) operator checks that Operand 1 is not greater than Operand 2. Statement: If the value of PC 100 is negative, set it to 0. Line CMD OT Operand 1 OPER OT Operand2 OT Operand3 If Goto Else GoTo 00010 IF PC 100 NG N -1 100 99999 00100 LET PC 100 EQ N 0 99999 99999 EXIT 99999

Here, the UserCalc compares if the value in Operand1 (PC100) to the value in Operand 2 (-1). If PC100 is NOT greater than -1 and thereby a negative value, the UserCalc goes to Line 00100 to make the Operand1 value 0.