Summary of polar form curves

Summary of polar-form curves Line   const Circle r  const Limacon r  b  a cos  and r  b  a sin  b b r  b  a sin  , r  b  a sin  ,   1 a a Cardioids r  a  a cos and r  a  a sin  Limacon in which a=b r  b  a sin  , b 2 a Rose curves r  a cos n and r  a sin 