Mathemagic

Can you mentally multiply enormous numbers faster than a calculator? Memorize a 100 digit number? Figure the day of the week of anyone's birthday? These are just some of the many feats of mind that will be demonstrated at this event. Mathematics can be a difficult and perhaps puzzling subject for many. But watch in amazement as one of the world's fastest human calculators shows his ability to turn math into magic.

Arthur Benjamin, Ph.D. is a professor of Mathematics at Harvey Mudd College in Claremont, CA. He is the author of Secrets of Mental Math and Proofs that Really Count as well as co-editor of the journal Math Horizons. Fusing his love of both mathematics and magic, he has appeared at the World Science Festival in New York and the Magic Castle in Hollywood. Reader's Digest calls him "America's Best Math Whiz".

• Category

  Science & Technology

[fredisdeadization]

i am going to identity thief , Allison birthday 4/29/1997. (j/k) but serious ,we have to burn this guy , he is a wizard.

[abrar safi]

I just realized this was one hour long.....

[jdm9700]

Mathematics is the Science of Problem Solving. Anyone who is good in Mathematics will be good in life.

[Bruce Wayne]

I haven't watch it yet but I already think he is awesome : )

[OFWGKTAz]

THIS NIGGA IS STRAIGHT G

[raza khan]

The answer would be infinite number . Problem solved .

[HalvorsenProduction]

Interestic

[Hùng Đỗ Thành]

Mr Benjamin is the greatest teacher of the world.

[Brendan Gilholly]

Because addition is to mainstream.

[Aliffbreaker]

lol

[Saskachewan]

..the Law of Sines, where they flip the fractions upside-down which hides the easy & direct relationship that all these ratios are the diameter of the circumcircle. But after they flip these fractions, this is no longer obvious.

Other example is when they tell you that tan(30*) = root(3)/3 which obscures the fact that it is simply 1/root(3), the inverse of root(3)=tan(60*). From similar reasons they require you to "rationalize" such fractions with radicals in the denominator.