# Bezier, what is t?

Gabor888
Hello

I have a little problem with bezier curve. There is a bezier curve, with n degree, with some control points. And the problem is, that i want to know the t, and i know the y of that point. So there's a curve, in this curve there is a point, i know that place, and i want to know, what is t in this bezier.

With this algorithm(which i attached) i know the point, if i know the t

but reverse?

i know, that the t can be more numbers. I want just one of them...