Posts concerning math

Centered Square Five

12:30 23 Jan 2015


Permalink     Comment     [, , ]    

Numberphile on The Pisano Period

23:50 20 Oct 2013

I recently discovered the Numberphile YouTube channel, and have been quite impressed with it. My favorite piece so far is this one:

Permalink     Comment     [, ]    

How to Solve It and Project Euler

20:35 16 Apr 2010
Permalink     Comment     [, , ]    

Big Number Hunting

23:56 05 Jan 2009. Updated: 16:52 28 Jan 2009

I came across this essay on large numbers by Scott Aaronson recently, and found it fascinating. It pulls together concepts of large numbers, notation, Ackermann numbers, and Turing machines, in clear and concise fashion.

Permalink     Comment     [, , ]    

Math at the Call Center

23:44 14 Nov 2008. Updated: 17:16 28 Jan 2009

This is from late 2006, and you’ve probably seen it before, but somehow I missed it then, and I just can’t resist posting it. It’s pretty amazing, showing a level of innumeracy that I have a lot of trouble believing is real—even if it is.

Transcript of the call.
MP3 of the call.
Randall Munroe’s response to the whole thing.

It’s just crazy. A series of people who seem to have difficulty with the concept that 0.002 cents and 0.002 dollars are different. I don’t think they’re pretending to have trouble, either… they seem to actually be unable to comprehend what the customer is saying.

Permalink     Comment     [, , ]