Evaluated curve on specific points

Grasshopper
1

Hi!
It looks simply:
I have a curve with specific points.
I want to know normals at those specifics points.
Im tryng many tool of analysis curve but it dosent work, it might be “Evaluate Curve” or “Curve Frame” but “t” its a number and not a point.

Thanks

2

Curve Closest Pointwill let you get the specific point parameter.

3

you are right !

Thank you