|visits||member for||2 years, 10 months|
|seen||Aug 5 at 18:02|
Can someone kindly explain idea behind the sum of projections?
I don't see why any two symmetric matrices should commute.
How does the polynomial transformation $P(x) \mapsto P(x) + c$ alter the roots of that polynomial? Specifics inside.
It might help to know that one of the roots of this polynomial is $\nu$.