Expression 4: "j" left parenthesis, "x" , right parenthesis equals StartFraction, floor left parenthesis, StartNestedFraction, mod left parenthesis, "x" , 2 pi "a" , right parenthesis NestedOver 2 pi , EndNestedFraction , right parenthesis Over 2500 , EndFractionjx=floormodx,2πa2π2500
4
Expression 5: "k" left parenthesis, "x" , right parenthesis equals cosine left parenthesis, StartFraction, floor left parenthesis, StartNestedFraction, mod left parenthesis, "x" , 2 pi "a" , right parenthesis NestedOver 2 pi , EndNestedFraction , right parenthesis Over 40 , EndFraction , right parenthesiskx=cosfloormodx,2πa2π40
5
Expression 6: "l" left parenthesis, "x" , right parenthesis equals 1.2 5sine left parenthesis, StartFraction, floor left parenthesis, StartNestedFraction, mod left parenthesis, "x" , 2 pi "a" , right parenthesis NestedOver 2 pi , EndNestedFraction , right parenthesis Over 40 , EndFraction , right parenthesislx=1.25sinfloormodx,2πa2π40