- #36
Ray Vickson
Science Advisor
Homework Helper
Dearly Missed
- 10,704
- 1,723
fonseh said:Or the notes in this picture is misleading ? It mentioned that the a11 or a22 is 0 , not when we pivot the a11 , the a21 and a31 is 0 ...
The note you post is 100% clear, so you must be reading it incorrectly. Remember: after swapping rows 1 and ##i##, the old row ##i## becomes the new row 1, and vice-versa. The old ##a_{i1}## becomes the new ##a_{11}##, and the old ##a_{11}## becomes the new ##a_{i1}##.
Last edited: