Hello everyone, I have been trying to finish the las lab. I got stuck in the 2.1 part
Reflection about y-axis (the vertical axis). I have been entering the matrix A but with all of its values in x negatives.

I anyone can explain what is the matrix or if a made a mistake please share it…!!
Thank you so mush in advance!

In section 2 - Eigenvalues and Eigenvectors of the Standard Transformations in a Plane
subsection 2.1 - Example 1: Reflection about y-axis (the vertical axis)
Exercise 1

START CODE HERE

Define transformation matrix A_reflection_yaxis as a numpy array.

A_reflection_yaxis = np.array([[-2, 3],[-2, 1]])
I entered the matrix A but reflected in yaxis. I am not sure if I am doing well since I got an error.

I landed in the same issue as well. The problem is clear about new matrix - it is matrix reflection on y axis. But calculating eigenvalue and eigenvectors with right reflected matrix still ends up in error.

I think, there is a slight misunderstanding. The problem is not asking for the resultant matrixafter transformation. Rather, it needs the transformation matrix itself.

I think you should revisit Week 3 transformation lab once more to brush up your skills. It may help.