Arthur Benjamin: A Performance of Mathemagic

You think you’re good in mental calculations? Watch Arthur Benjamin, one of the most amazing mental calculators of our time. Mr. Benjamin can square up to 4-digit number faster than a calculator. He can also square up to 5-digit numbers mentally. In addition, he can also determine mentally the day of the week that you are born.

Watch the 15-minute video of Mr. Benjamin the TED Talk titled Benjamin: A performance of Mathemagic.

Benjamin is the co-author of Secrets of Mental Math which is about the secret of rapid mental calculations. He is also the author of Proofs that Really Count: The Art of Combinatorial Proof .

 

Back from a long break

I am happy to tell you all that I am back  from a long break and will be posting articles from time to time.  It required me two weeks to get a user ID from my University here in Japan. The user ID will enable me to connect to the University’s network and use the internet.

The content of many recent articles of Math and Multimedia have been relatively higher than the mathematics taken by high school, so I plan to tone down a little bit. Although I want to post undergraduate mathematics in this blog from time to time, the main audience is still high school mathematics students and teachers. Therefore, in the next few weeks, I will be writing tutorials on how to solve word problems, a topic that is requested by a lot of readers since this blog started. Solving word problems will include step by step tutorials and tips on how to solve number problems, age problems, mixture problems, etc.

Aside from problem solving, I am also exploring some software which I will share to you in the next few weeks.  I will also provide tips and tutorials particularly about Open Office Spreadsheet.

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