運算式 3: StartAbsoluteValue, "f" left parenthesis, "x" , right parenthesis squared plus "f" left parenthesis, "s" left parenthesis, "x" , "y" , right parenthesis times "y" , right parenthesis squared minus .2 6 , EndAbsoluteValue less than or equal to .1fx2+fsx,y·y2−.26≤.1
運算式 4: StartAbsoluteValue, "f" left parenthesis, 1 minus "x" , right parenthesis squared plus "f" left parenthesis, "s" left parenthesis, "x" , "y" , right parenthesis times left parenthesis, 1 minus "y" , right parenthesis , right parenthesis squared minus .2 6 , EndAbsoluteValue less than or equal to .1f1−x2+fsx,y·1−y2−.26≤.1
運算式 5: "s" left parenthesis, "x" , "y" , right parenthesis equals "R" left bracket, 1 plus floor left parenthesis, "x" , right parenthesis plus "N" times floor left parenthesis, "y" , right parenthesis , right bracketsx,y=R1+floorx+N·floory
5
運算式 6: "f" left parenthesis, "x" , right parenthesis equals mod left parenthesis, "x" , 1 , right parenthesisfx=modx,1
