Expression 3: "g" left parenthesis, "t" , right parenthesis equals "a" 13cosine left parenthesis, "t" , right parenthesis minus "a" 5cosine left parenthesis, 2 "t" , right parenthesis minus "a" 2cosine left parenthesis, 3 "t" , right parenthesis minus "a" cosine left parenthesis, 4 "t" , right parenthesis plus "k" left parenthesis, "t" , right parenthesisgt=a13cost−a5cos2t−a2cos3t−acos4t+kt
3
Expression 4: "j" left parenthesis, "t" , right parenthesis equals 40floor left parenthesis, mod left parenthesis, StartFraction, "t" Over 2 pi , EndFraction , 11 , right parenthesis , right parenthesisjt=40floormodt2π,11
4
Expression 5: "k" left parenthesis, "t" , right parenthesis equals 40floor left parenthesis, StartFraction, "t" Over 2 pi times 11 , EndFraction , right parenthesiskt=40floort2π·11