# miscellaneous

# AMS Menger Awards 2018

*(shared from the AMS website for motivational purposes)*

The AMS presented the Karl Menger Memorial Awards at the 2018 Intel International Science and Engineering Fair (Intel ISEF), May 13-18, 2018 in Pittsburgh, PA. The First Place Award of US$2000 was given to **Ryusei Sakai**, **Sota Kojima**, and **Yuta Yokohama**, Shiga Prefectural Hikone Higashi High School, Japan, for “Extension of Soddy’s Hexlet: Number of Spheres Generated by Nested Hexlets.” *[Photo: *bottom row (left to right): Dr. Keith Conrad (committee chair), Rachana Madhukara, Yuta Yokohama, Sota Kojima, Ryusei Sakai; top row (left to right): Chavdar Lalov, Gianfranco Cortes-Arroyo, Gopal Goel, Savelii Novikov, Boris Baranov. Not pictured: Muhammad Abdulla. Photo by the Society for Science & the Public.]

The Menger Awards Committee also presented the following awards:

*Second Award of $1,000*:**Gopal Krishna Goel**(Krishna Homeschool, OR), “Discrete Derivatives of Random Matrix Models and the Gaussian Free Field” and**Rachana Madhukara**, Canyon Crest Academy, CA, “Asymptotics of Character Sums”*Third Award of $500*:**Chavdar Tsvetanov Lalov**, Geo Milev High School of Mathematics, Bulgaria, “Generating Functions of the Free Generators of Some Submagmas of the Free Omega Magma and Planar Trees”;**Gianfranco Cortes-Arroyo**, West Port High School, FL,*“*Generalized Persistence Parameters for Analyzing Stratified Pseudomanifolds”;**Muhammad Ugur Oglu Abdulla**, West Shore Junior/Senior High School, FL, “A Fine Classification of Second Minimal Odd Orbits”;**Boris Borisovich Baranov**and**Savelii Novikov**, School 564, St. Petersburg, Russian Federation, “On Two Letter Identities in Lie Rings”- Certificate of Honorable Mention:
**Dmitrii Mikhailovskii**, School 564, St. Petersburg, Russian Federation, “New Explicit Solution to the N-Queens Problem and the Millennium Problem”;**Chi-Lung Chiang**and**Kai Wang**, The Affiliated Senior High School of National Taiwan Normal University, Chinese Taipei, “’Equal Powers Turn Out’ – Conics, Quadrics, and Beyond”;**Kayson Taka Hansen**, Twin Falls High School, ID, “From Lucas Sequences to Lucas Groups”;**Gustavo Xavier Santiago-Reyes**and**Omar Alejandro Santiago-Reyes**, Escuela Secundaria Especializada en Ciencias, Matematicas y Tecnología, Puerto Rico, “Mathematics of Gene Regulation: Control Theory for Ternary Monomial Dynamical Systems”;**Karthik Yegnesh**, Methacton High School, PA, “Braid Groups on Triangulated Surfaces and Singular Homology”

A booklet on Karl Menger was also given to each winner. This is the 28th year of the presentation of the Karl Menger Memorial Awards. The Society’s participation in the Intel ISEF is supported in part by income from the Karl Menger Fund, which was established by the family of the late Karl Menger. For more information about this program or to make contributions to this fund, contact the AMS Development Office.

*Cheers to the winners,*

Nalin Pithwa.

# Intel Pentium P5 floating point unit error (1994) — an RMO problem !!!

**Problem:**

Two number theorists, bored in a chemistry lab, played a game with a large flask containing 2 litres of a colourful chemical solution and an ultra-accurate pipette. The game was that they would take turns to recall a prime number p such that is also a prime number. Then, the first number theorist would pipette out 1/p litres of chemical and the second litres. How many times do they have to play this game to empty the flask completely?

**Hint: **

A bit of real analysis is required.

**Reference:**

*I will publish the reference when I post the solution. So that all students/readers can curb their impulse to see the solution immediately!!!*

I hope you will be hooked to the problem in a second….!!! **Here is a beautiful utility of pure math! 🙂**

*Cheers,*

Nalin Pithwa

PS: I do not know if the above problem did (or, will?? )appear as RMO question. It is just my wild fun with math to kindle the intellect of students in analysis !! 🙂