[LibGDX]Looking for methods equivalent to the following

Newbie & Debugging Questions
#1

I am translating a XNA code and is looking for something that is equivalent to these two(preferably in the LibGDX library since I am working with their matrix classes):

            Vector2 v1= Vector2.TransformNormal(Vector2, Matrix);

            Vector2 v2 = Vector2.Transform(Vector2, Matrix);

Their documentation:
http://msdn.microsoft.com/en-us/library/microsoft.xna.framework.vector2.transformnormal(v=xnagamestudio.40).aspx
http://msdn.microsoft.com/en-us/library/microsoft.xna.framework.vector2.transform(v=xnagamestudio.40).aspx

#2

gdx.Vector2.mul(Matrix3) ?

#3

That almost gave me accurate results. Probably because mul can not be used for both transform and transformNormal.

Applying a transform to a coordinate with a given matrix can probably be found on somewhere on the net. But what is transformNormal?

#4

Mul should be equivalent to transform. TransformNormal probably just normalizes the vector after the multiplication, so just call nor() on the resulting vector. Maybe you might also need to call nor() on the source vector to get the identical behavior to transformnormal.