Archive for the “Math” category
Does .9999999… = 1?
by Marshall on February 19, 2007
Apparently there is a lot of discussion out there as to the validity of this statement. The main argument for equality goes something like this. Say x = 0.99999… (or commonly expressed as .9). Multiply both sides by 10 and (…)
Science Links of the Week
by Marshall on February 17, 2007
Programmable Water – An MIT student creates logic gates that switch with the power of water. NetLogo – A programmable modeling environment Earth’s Hum – Earth’s Hum is explained by scientists as being caused by waves in the oceans. If (…)
Strange Math…
by Marshall on January 9, 2007
Apple Inc. + Google + Yahoo + Cingular = iPhone! I know I will be buying one in June when they come out.
Four Fours
by Marshall on December 6, 2006
I just found out about a little math game called Four Fours. Basically what you try to do is try to represent integers using only the number 4 and a few common mathematical operators, for example: 0 = 4 – (…)
The Math behind Google’s PageRank
by Marshall on December 6, 2006
The American Mathematical Society has a fairly indepth article on how Google computes the PageRank.
Need the Inverse Square Root of a Number, Fast?
by Marshall on December 1, 2006
Quake 3 has a the following bit of code to calculate the inverse square of an integer. The i = 0x5f3759df – (i >> 1); is the most curious part of the function, and apparently is has to do with (…)
Math is Delicious!
by Marshall on September 18, 2006
I found another funny web comic, Questionable Content, which reminds us that Math is Delicious!