traldan

For me it's less intuitive than a tree, but you can use a matrix to express all possible strategies of a two-player sequential game. This can help you visualize credible vs. noncredible threats from the second player. Ultimately I think the tree is more helpful in solving it visually, though.

Great explanation, thanks for posting that!

Technically, yes, but HN has an 80 char limit in the title. ;)

A vacuum sucks a lot more than Microsoft.

Google vs. Wolfram Alpha is something I'm ok with.

I'd rather type 2\pi than \frac{\tau}{2}.

Having implemented AKS in Python and Sage, it can get pretty slow - obviously, nowhere near a good probabilistic test even to a staggering degree of certainty. That said, most of the algorithm is very quick. It might be smart to run its basic compositeness tests, do a pseudoprime test, and only do the polynomial mod operation if the number passes.

Don't forget AKS, which is deterministic and faster than trial division. Can be a bit of a pain to implement though.

Since Corporations are People, how would UMG be charged with a felony?

@cmdrtaco: not so sure about that one... ;)

Not that I don't want to support you guys for doing something awesome like this, but I wish the "Like" button showed appropriate meta-content on my facebook wall, instead of just a generic description of SendWrite. Also, donated. :)

I just started using SymPy for some undergrad math research. Handy!

The scale should go from 1 to Robert Scoble

I'd be scared of the Tolkien estate.

Sounds like a Cracked "article" to me

This is from March 2011, from their last(?) newsletter:

Who Reads Quantly?

Based on our web server logs, here are the top firms accessing Quantly over the past six weeks. The firms are listed in order, most traffic first. I've highlighted some of the more hardcore quant outfits.

Credit Suisse Group, Bank of America, Deutsche Bank, Toronto Dominion Bank, Citadel Investment Group, Cooperfund, JPMorgan Chase, Susquehanna Ireland Ltd, Barclays Capital, Cerebellum Capital, QCAP Management, Putnam Investments, Quantmetrics Ltd, Tradeworx, DRW Trading, Goldman Sachs Group, UBS, Timber Hill LLC, SAC Capital Advisors, GETCO, LLC, Light Box Capital, Morgan Stanley Group, WH Trading, Crabel Capital Management,

Top universities accessing the site:

Massachusetts Institute of Technology, Virginia Polytechnic Institute, Columbia University, Claremont University Consortium, University of California, Los Angeles, Stanford University, University of Hawaii, Imperial College London, University of California at Berkeley, New York University, Santa Clara University, Carnegie Mellon University,

This has been what I've experienced for more than just the latest versions. In personal usage the crossover between Chrome and Firefox has always been in the neighborhood of 20-30 tabs. Past that. Chrome has always seemed more sluggish (and less usable, given how tiny the tabs get).

Wait, what? Why would environmentalists build oil wells? That's precisely the opposite of caring about the environment. Unchecked human development is recklessly irresponsible. But growth and development aren't necessarily evil - far from it. Understanding the ENTIRE impact of ones actions, rather than just the portion that affect you, is (imo) the most important tenet of protecting the world we live in. From that perspective, you can make intelligent decisions and grow, but not at the expense of everyone around you.

Does this include Gmail labs? If so, fuck.

Seeing this guy give a talk next week.

Great stuff when I worked through it a few weeks ago. That bundled deal looks very tempting!

This sounds awesome.

I seem to recall reading they actually hired people recently, or were in the process of doing so.