Recent content by n0ya

Thanks for the replies. Then, as far as I understand it, if you for example have: x = t; y = t, then f(x,y)=xy will be a parabola (t^2). Anyway, I think both quadratic and bilinear are both correct terms here. However, it might be more intuative to call it a bilinear mapping, instead of a...

My problem is really whether f(x,y) = xy is a quadratic polynomial, as SteveL27 points out. I know that this polynomial is of degree 2, and according to Wikipedia, "a quadratic polynomial or quadratic is a polynomial of degree two", it is a quadratic polynomial. However, some argue that a x^2...

Hello, I just want to clear up a confusion. Is f(x,y) = a + bx + cy + dxy a quadratic polynomial? where x and y are variables and a,b,c,d are constants.

Thanks!

I have a 2D function f: f(x,y) = a + bx + cy + dxy what is the inverse of this function?