Every Pi Day I point to this fine piece on the Chudnovsky brothers that appeared in *The New Yorker.*

Their method still rules

snip

...

“The system of this paper is archeological,” he said. “By looking at a slice, I know the year. This slice is 1986. Over here is some 1985. What you see in this room is our working papers, as well as the papers we used as references for them. Some of the references we pull out once in a while to look at, and then we leave them somewhere else, in another pile. Once, we had to make a Xerox copy of a book three times, and we put it in three different places in the piles, so we would be sure to find it when we needed it. Unfortunately, once we put a book into one of these piles we almost never go back to look for it. There are books in there by Kipling and Macaulay. Actually, when we want to find a book it’s easier to go back to the library. Eh, this place is a mess. Eventually, these papers or my wife will turn me out of the house.”

Much of the paper consists of legal pads covered with Gregory’s handwriting. His holograph is dense and careful, a flawless minuscule written with a red felt-tip pen—a mixture of theorems, calculations, proofs, and conjectures concerning numbers. He uses a felt-tip pen because he doesn’t have enough strength in his hand to press a pencil on paper. Mathematicians who have visited Gregory Chudnovsky’s bedroom have come away dizzy, wondering what secrets the scriptorium may hold. Some say he has published most of his work, while others wonder if his bedroom holds unpublished discoveries. He cautiously refers to his steamer trunks as valises. They are filled to the lids with compressed paper. When Gregory and David used to fly to Europe to speak atconferences, they took both “valises” with them, in case they needed to refer to a theorem, and the baggage particularly annoyed the Belgians. “The Belgians were always fining us for being overweight,” Gregory said.

...

## simpson's paradox pt 2

are university admissions biased?

05:32 in General Commentary, math | Permalink | Comments (0)