How to know if a Point belongs to a curve?

I have a point P given by its coordinates like this:

P=[xp;yp];

And I have the function curve, which is a 2x900 matrix that has its coordinates:

curve=[x0 x1 x2 x3 x4 x5 x6 x7 x8;y0 y1 y2 y3 y4 y5 y6 y7 y8];

(each element in this matrix has 100 elements inside)

I would like to know if P belongs to the curve. Is there any way of knowing it?

Answer 1

[David Hill]

ismember(curve',P','rows');

[ErikJon Pérez Mardaras]

It says me that both A and B must have the same number of columns. Which doesn't make a lot of sense...because P is a 2x1 matrix and curve is a 2x900 matrix.

[David Hill]

Make sure you transpose (curve') and (P').