FoxTrot Classics by Bill Amend for August 24, 2019

a head start too fast to get to the honor roll

Fifty five or more chapters in a middle school math book?

He’s going to be hella disappointed when he gets to the end of the book in October

next chapter: Unbounded Operators on Hilbert Spaces. Hot damn!

I swear, I wish I could do this.

Figures.

My used to be a 5th grade teacher. She divided her class according to ability – slower kids worked at the level they could handle, the average kids worked on 5th grade stuff (and helped the slower kids (i.e., tutor them) and the really bright kids had special projects. One of those special projects was to work all the way thru a 5th grade teacher’s edition of a new math book. They were to list any wrong examples, explain why they were wrong and give my mom a report as to whether the book was appropriate for the 5th grade or not and why. She would also let them work on stuff at higher grade levels. I wanted her as my teacher so bad! (My sister and I went to the same school she taught at)

Unbounded operators on Hilbert spaces

Definition 1.1. Let H1,H2 be Hilbert spaces and T:dom(T)−→H2 be a densely defined linear operator, i.e. dom(T) is a dense linear subspace of H1. Let dom(T∗) be the space of all y∈H2 such that x7→(Tx,y)2 defines a continuous linear functional on dom(T). Since dom(T) is dense in H1 there exists a uniquely determined element T∗y∈H1 such that (Tx,y)2= (x,T∗y)1 (Rieszrepresentation theorem). The map y7→T∗y is linear and T∗:dom(T∗)−→H1 is the adjoint operator to T. And so on and so on.

And the rest is obvious. ☺

I had a friend like that, the good thing it made my homework easier to do.

I did that in 2nd grade, worked through the entire math book in two weeks. Of course, 2nd grade math is easy. You don’t even need your toes.

I am so opposite Jason on this..I would have looked for any excuse to not open that math book!