|Off on a Tangent
|A Fortnightly Electronic Newsletter
from the Hope College Department of
|April 4, 2011||Vol. 9, No. 13
colloquium focuses on graph theory
|Title: Convexity and Independence in Multipartite
|Speaker: Darren Parker, Grand Valley State University|
|Time: Tuesday, April 12 at 4 p.m.
|Place: VWF 104
|The end is near!
||For those of you waiting until the last minute to
complete your colloquium credits, we are now fairly close to that last minute.
There are two problems of the fortnight left (including the one listed
in this newsletter) and there are three remaining colloquia scheduled for
the semester at the following days and times.
The Integration Confrontation will be Wednesday April 20th at 3 PM in VZN 297. Teams of 1-3 students will compete solving challengingintegrals. Fabulous prizes for the winners. Please sign up by by 1:00 PM on Tuesday April 19th on Professor Edwards' door. You may
sign up as a team or we will place individuals on teams if they desire. Participation in this event is worth one colloquium credit and the students should be in Calculus II or beyond.
score well in the Putnam exam
||A big congratulations goes out to Nathan
Graber, XiSen Hou, Joshua Kammeraad, and Bobby Nash on their outstanding
performance in the 2010 William Lowell Putnam Mathematical Competition. As
a team, they finished 121st out of teams from 442 colleges and universies
from the United States and Canada.
The Putnam exam is so challenging that this year's median score was two points out of a possible 120. Individually, each of the four students scored between 10 and 20 points on the exam, all ranking within the top 1,670 out of the 4,296 individual participants from 546 institutions.
"Putnam is an extremely difficult and prestigious competition," said Dr. Aaron Cinzori, mathematics department chairperson. "For our students to finish 121st among the best mathematical students in two countries, and to score 10 to 20 individually when the median was two, is a remarkable achievement and we're proud of their performance."
The annual William Lowell Putnam exam is a two-part, six-hour exam administered on the first Saturday in December, with the students who compete taking the exam on their own campuses. The exam consists of 12 problems, each worth up to 10 points, that cut across many areas of mathematics and are designed to test originality as well as technical competence. The competition began in 1938 and is administered by the Mathematical Association of America.
|Math Online: Mathematics in Movies|
||Oliver Knill of Harvard University has
developed a website dedicated to Mathematics in the Movies. The site
features a collection of clips from more than 200 movies in which mathematics
plays a part and each clip comes with an explanation of the mathematics
found in the movie.
Dr. Knill's mathematics in movies website can be found here.
of the Fortnight
last our last PotF: A certain dodecahedron has edges
of length 10 cm. If a fly lands on a vertex of this dodecahedron
and then walks along only the edges, what is the greatest distance the
fly could walk before coming to a vertex a second time and without retracing
an edge? Justify that your solution is optimal.
|Problem of the
Bethany and Corey have a window washing business and are regularly hired by
a strip mall owner. They have found that together they can finish the
job in 6 hours less time than when Allyson works alone, 1 hour less than when
Bethany works alone, and in ½ the time than when Corey works alone.
The next time they need to wash the windows, only Allyson and Bethany will
be able to work. How long will it take them?
Write a complete solution (not just the answer) on a dodecahedron and drop it off in the Official Problem of the Fortnight Slot outside VWF 212 by 3:00 pm on Wednesday, April 13. As always, be sure to include your name, the name(s) of your professor(s), and your math class(es) -- e.g. Candice Waite , Dr. Harriet Knight, Math 112 -- on your solution.
|Off on a