Expression 3: "p" left parenthesis, "x" , "y" , right parenthesis equals mod left parenthesis, floor left parenthesis, "x" , right parenthesis plus floor left parenthesis, "y" , right parenthesis plus left brace, max left parenthesis, mod left parenthesis, 4 "x" minus .5 , 2 , right parenthesis , mod left parenthesis, 4 "y" minus .5 , 2 , right parenthesis , right parenthesis less than or equal to 1 : left brace, "h" left parenthesis, floor left parenthesis, 4 times left bracket, "x" , "y" , right bracket plus .5 , right parenthesis , right parenthesis less than .5 : 0 , 1 , right brace , 0 , right brace , 2 , right parenthesispx,y=modfloorx+floory+maxmod4x−.5,2,mod4y−.5,2≤1:hfloor4·x,y+.5<.5:0,1,0,2
3
Expression 4: "h" left parenthesis, "v" , right parenthesis equals mod left parenthesis, 10 to the 4th power sin left parenthesis, 10 to the 4th power left parenthesis, "v" left bracket, 1 , right bracket plus 7.1 2 times "v" left bracket, 2 , right bracket , right parenthesis , right parenthesis , 1 , right parenthesishv=mod104sin104v1+7.12·v2,1