72   MYFLT s = SIN(angle);  in rotate_point()
88     double x = t+kparam*SIN(t);  in ellipse()
89     *outX = kx + krx * SIN(x);  in ellipse()
99     *outX = kx + krx * SIN(t) * (COS(t) + kparam);   in limacon()
106     double x = t+kparam*SIN(t);  in lemniskateG()
108     *outY = ky + kry * SIN(x)*COS(x);  in lemniskateG()
116     *outY = ky + kry * SIN(t) * (kparam + COS(2*t));  in cornoid()
123     *outX = kx + krx * COS(t) * (1+kparam*SIN(2*t));  in trisec()
124     *outY = ky + kry * SIN(t) * (1+kparam*SIN(2*t));  in trisec()
131     *outX = kx + krx * COS(t) * (kparam*SIN(2*t)+SIN(t));  in scarabeus()
132     *outY = ky + kry * SIN(t) * (kparam*SIN(2*t)+SIN(t));  in scarabeus()
136     double sint = SIN(t);  in folium()
144     double sint = SIN(t);  in talbot()