Recent content by femas

Thank you for the reply. But 'x' may be real but greater than R which makes 'y' to be pure imaginary. So I don't know what is the case that makes 'x' real?

Hi Let's say that we have equation of circle as x2 + y2 = R2 and equation of ellipse in quadratic form as A x2 + B y2 + Cx + D = 0 if the circle is inside the ellipse, so there is no intersection ... Are x and y imag in this case? /or/ is one of them imag and the other is real...

Thank you ... But can you give me an example.

Hi, If the cone is cut with a plane such that an ellipse has been formed. Let's say the major axis is 'a' and the minor axis is 'b'. Is there a way to find a and b from the geometry instead of getting them from the quadratic equation.

Thanks for your reply!

Hi, Assume that I have f(u,v,w,h) du dv dw dh and I need only to change three variables (u, v, w) say to other variables called (s, r, t) and keep h as is it is So my question can I write this as f(u,v,w,h) du dv dw dh = G(r,s,t,h) J(r,s,t) dr ds dt dh where J is jacobian...