Potential mistake on p. 29

[AleksandarJankovski]

Example 2.6. The following transformation is performed: -R_2 - R_3; and it is stipulated that following this transformation, the last row of the matrix reads: 0, 0, 0, 0, 0. However, is it not the case that to obtain a row of all zeros, the required transformation is -R_2 - R_3 + R_4?

Location

1. version: ©2024 M. P. Deisenroth, A. A. Faisal, C. S. Ong. Published by Cambridge University Press (2020)
2. Chapter: 2
3. page: 29
4. Example 2.6, after the following language: "When we now apply the indicated transformations (e.g., subtract Row 1 four times from Row 2), we obtain"

Proposed solution
Is the transformation not: -R_2 - R_3 + R_4