Typo on Slide 87 (Solving Ax = b)

[kienerj]

The slide shows LU Decomposition. However the value for a32 (matrix A, 3rd row, 2nd value) should be 1 instead of 2. eg. whole row should be 1,1,4 but is 1,2,4. (1 is the correct result and that's how the matrix actually looks on the previous slide)