2-21

• 13:40:29: Q1 what is the inner product of (1,2) and (2,1)?

• 14:22:38: Q2. If lambda1 and lambda2 are large, is E[u,v] flat or “rough”?

• 14:29:55: Q3 what the region is like when lambda1 = lambda2 = 0?

• 14:33:38: Q4. what is the trace?

• 14:34:11: Q5 how about determinant of the matrix ([1 1; 2 3])?