Week 4 Exercise 1 Problem

Course Q&A Math for Machine Learning Linear Algebra for Machine Learning and Data Sc...
1

Hello,
For Exercise 1, as it’s asking for A reflection by y-axis of matrix [[2,3],[2,1]], I projected the points by y-axis which made it’s x components 0. But, it did not pass all test cases. Can anyone please help what I am doing wrong?

2

yep, I’m also stuck here.

3

dude, this question was a problem…

Just review the linear transformation lab that you will find the answer.

1 Like
4

@Siddhartha_Roy_Nandi The question doesn’t seem to be specifically asking for Matrix A’s reflection about Y-axis.

Reference material: Reflection Transformation Matrix

2 Likes
5

Thanks @yan_teixeira

6

Thanks @Abhishek_J . Problem solved now.