Homepage › Solution manuals › Gilbert Strang › Introduction to Linear Algebra › Exercise 2.7.25

Exercise 2.7.25

Answers

One way to decide even vs. odd is to count all pairs that $P$ has in the wrong order. Then $P$ is even or odd when that count is even or odd. Hard step: Show that exchange always switches that count! Then 3 or 5 exchanges will leave that count odd.

mathchakra

2022-01-16 12:36

Exercise 2.7.25

Answers

Comments

Add answer