Find the equation of the curve which passes through the given 12 points
Find the equation of the curve which passes through the points (1,3), (2,3), (3,6), (4,1), (5,4), (6,6), (7,2), (8,5), (9,0), (10,3), (11,5), (12,1). The equation may be trigonometric function, algebric function or any kind of equation.