Being given an ellipse E described by its center (xM,yM), semi-major axis a and semi-minor axis b in combination with a point P0(x0,y0) outside, Pc(xc,yc) inside or a secant defined by f(x), this CAS-program finds characteristic items like tangents T1, T2, tangential points P1, P2, chord between P1 and P2 and some more quantities and draws the plot. |