Exam #3 Problem Solving

MIT 18.06SC Linear Algebra, Fall 2011
Instructor: David Shirokoff

A teaching assistant introduces problems found on the third exam.

License: Creative Commons BY-NC-SA

[AnupKumar-wked]

Very nice presentation of three mainly used matrices in physics. Physicists should appreciate this series. Thanks.

[qbtc]

Eigenvalues of projection matrices are always 0 and/or 1.

[АлександрСницаренко-рд]

amazing TA, born to be a great math lecturer

[andreas_gswerve]

We can also say that P is singular matrix so one eigen value has to be 0 and the other will be 1 because trace=λ1+λ2=1

[ysmashimaro]

7:30 The matrix Q is anti-symmetric or skew-symmetric, should its lambdas be pure imaginary?

[akashatyoutube]

This was damn easy exercise, considering questions already solved earlier were of good level. SVD was confusing #problem solving.