Archive for December, 2007
Tuesday, December 18th, 2007
In case it's not enough that young chimps have better numerical memory than adult humans it now seems that monkeys can perhaps impress their friends with mental Math tricks. A new study shows that monkeys can do mental Math. The article states:
"Rhesus macaque monkeys performed nearly as well as college ...
Posted in Fun, Fast Arithmetic | 1 Comment »
Monday, December 17th, 2007
Check out this amazing video of Mental mathemagician Arthur Benjamin performing calculation feats in front of an audience.
The video comes from the TED.com blog. TED is an organization dedicated to changing the world by spreading important ideas. TED, which stands for "Technology, Entertainment, Design", but whose scope is much broader ...
Posted in Fast Arithmetic | 6 Comments »
Sunday, December 16th, 2007
[ Credit goes to Mighty Wombat. ]
SHARETHIS.addEntry({
title: "When numbers get into a fight ...",
url: "http://wildaboutmath.com/2007/12/16/when-numbers-get-into-a-fight/"
});
Posted in Fun, Humor | No Comments »
Sunday, December 16th, 2007
Do you know a high school student who's stressing over getting ready for his or her SATs, in particular the Math part? Are you wondering what to buy that special student for Christmas? Wanting a memorable gift? Want to get something he or she likely doesn't already have? Do you ...
Posted in Fun, Humor | 1 Comment »
Friday, December 14th, 2007
Welcome everybody to the 22nd Carnival of Mathematics!
This edition has 16 articles and 16 is my lucky number. Very cool!
If you find these Carnivals enjoyable please spread the word and help the blathosphere (Math+blogosphere=blathosphere - thanks Vlorbik for this reference to the term) grow by linking to this and every ...
Posted in Blog Carnival | 10 Comments »
Thursday, December 13th, 2007
If you've never heard of flexagons you're in for a treat. Flexagons are flat paper constructions, some of which are really easy to make, that are tremendously fun to play with because you "flex them", hence the name, to reveal more than the two sides that you would expect to ...
Posted in Fun, Beauty | 4 Comments »
Wednesday, December 12th, 2007
Seeking Rest in the Ancient Paths has posted the latest Carnival of Homeschooling. Here are the Math-related articles from the Carnival:
Mandy presents Fuzzy Math - Fuzzy Minds posted at Building Blocks.
Sol Lederman presents What kind of Math can you do with gum drops and tooth picks? posted at ...
Posted in Blog Carnival | 2 Comments »
Monday, December 10th, 2007
Here's a video on how to quickly square a 2-digit number. The technique is based on this algebra:
If you have a number with digits "ab" then the number is 10a+b.
(10a+b)^2 = 100a^2+20ab+b^2.
If you enjoy this video check out all of the Wild About Math! mathcasts.
[youtube]http://www.youtube.com/watch?v=_wjxgz6r-_U[/youtube]
SHARETHIS.addEntry({
title: "Mathcast #4: Quick squaring ...
Posted in Mathcast, Fast Arithmetic, Algebra | 11 Comments »
Sunday, December 9th, 2007
I'm hosting the upcoming Carnival of Mathematics. I need submissions by Thursday night and will release the Carnival sometime Friday.
For those of you who are not familiar with blog carnivals, they're "events" in which the carnival host publishes submissions he/she deems appropriate to the theme of the carnival. This carnival ...
Posted in Blog Carnival | 2 Comments »
Sunday, December 9th, 2007
On December 3rd SAGE was released. Per the SAGE home page:
"Use SAGE for studying a huge range of mathematics, including algebra, calculus, elementary to very advanced number theory, cryptography, numerical computation, commutative algebra, group theory, combinatorics, graph theory, and exact linear algebra."
SAGE is a large collection of libraries (chunks of ...
Posted in Uncategorized | 1 Comment »
