Chapter 2 Question 3

[cammckenzie]

Thanks for the solutions,
I believe that your matrices are have the variables defined in the wrong order.

You have them defined as

1 x y
0 1 z
0 0 0

Whereas the book has them defined as

1 x z
0 1 y
0 0 0

[ilmoi]

could be! Wanna submit a PR?