Posts Tagged ‘mathematics’

Russian Scientist Claims to Have Cracked Fermat’s Theorem

Wednesday, August 24th, 2005

Fermat’s great theorem states that there are no positive integers x, y, and z such that xn + yn = zn in which n is a natural number greater than 2.

A doctor of technical sciences from the Siberian city of Omsk has proved Fermat’s theorem and claims to have a “simple” proof.
In 1995, the English mathematician Andrew Wiles published a proof of this theorem. However, Wiles his proof is beyond the understanding of most mathematicians today whereas Fermat claimed his theorem had a truly marvelous proof. So, math institutes still receive thousands of letters with proofs of Fermat’s theorem.

Well, I know I didn’t understand Wiles’s proof (not that I really tried). However the BBC horizon documentary was fun to watch.
I’m looking forward to have this new proof explained to me.

the story on mosnews.com

The wikipedia on Fermat.

Databases

Tuesday, May 3rd, 2005

YES!

I passed my databases exam!

Course description (Dutch).

I’m sooo happy.
Now on with Discrete Math.

Discrete Math

Sunday, April 17th, 2005

Having probably made my last databases-exam, I started a new course, Discrete Math A.
The last time I studied math was more than 9 years ago, and I found myself puzzling why
(2n+1)2 was not (4n2 + 1).

After 15 minutes of panic, I recalled my second grade math-classes:
(2n+1)2 = 4n2 + 4n + 1
because
(2n+1)2

=(2n+1) * (2n+1)
= 2n * 2n, 2n * 1, 1 * 2n, 1*1
= 4n2 + 2n + 2n + 1
= 4n2 + 4n + 1

pfeeuw.