Friday, March 27, 2015

Drop-In Tutoring Changes Spring 2015


Due to lack of need, the following Math Courses will no longer have a drop-in tutoring session: 

Calc. Mgmt. Life & Soc. Sci. II (M202)
The Calculus II (M206)
Theory of Arith. & Geom. (M217)
Geometry for Middle Grades (M218)

If you find you are in need of a tutor for one of these courses, please see your professor.

The following courses will still have drop-in Tutoring from 7:00 - 9:00 p.m. in Kettering 219:

Elementary Statistics (M208) - Mondays, Tuesdays, and Wednesdays
Discrete Math II (M224) - Wednesdays

Friday, March 13, 2015

Math 450 Senior Seminar Presents "The Probability of Winning a Point, Game, and Set" on Tuesday, March 17

In a sweaty, heated game of racquetball there seems to be little time to think about the mathematics behind the fast-paced game. However, when one steps back from the life threatening sport of racquetball and looks at the probabilities that are incorporated into the game, it makes the sport that much more interesting. Throughout this talk, we will be looking at some of the research of Tom Brown and Brian Pasko and their discoveries of relations of mathematical probabilities to winning a point, a game, and a set in racquetball. Using geometric series and combinations, it is possible to show a player, whether he is better, worse or equally as good as his opponent, and the probability he has of winning a point, a game, and a set.

Math 450 Senior Seminar Presents
"The Probability of Winning a Point, Game, and Set"
by Jacob Ackerman
Tuesday, March 17, 4:30 p.m.
in Patterson 301

All are Welcome!

Thursday, March 12, 2015

Happy Pi Day!


Celebrate National Pi Day this Saturday, March 14. Pi Day was created by physicist Larry Shaw at San Francisco's Exploratorium in 1988. It wasn't until 2009 that the U.S. House of Representatives officially recognized March 14 as National Pi Day.


"Pi, an infinite number with no pattern, has been calculated to over 1 trillion digits beyond its decimal point. This year is especially significant since the date, year and time (3/14/15 at 9:26 a.m. and 53 seconds) corresponds with the first 10 digits of Pi (3.141592653...), an occurrence that only happens once a century" (http://northofboston.wickedlocal.com/article/20150311/NEWS/150319900).

Enjoy Pi Day, Saturday, March 14!

Math 450 Senior Seminar Presented "Ford Circles, Continued Fractions, and Rational Approximation" on Tuesday, March 10

The presentation focused on the material presented by Ian Short in his article "Ford Circles, Continued Fractions, and Rational Approximations," which was published in The American Mathematical Monthly in February 2011. Ford Circles are a geometric representation of the relationship between continued fractions and approximation of real numbers by rational numbers. An introduction to some of these essential concepts were presented before delving into the material Short presented which further illuminated the mathematics behind rational approximation of real numbers. Short proves two major theorems along with a series of lemmas and corollaries. By proving these statements, Charles Michel ultimately showed that several of the key properties of continued fraction expansion and Diophantine approximations can be proven using Ford Circles and rewritten in terms of relationships between tangential Ford Circles, at the Math 450 Senior Seminar that was held on Tuesday, March 10.

Monday, February 23, 2015

Undergraduate Research and Creative Activity Symposium

The Undergraduate Research and Creative Activity Symposium will be held on April 8, 2015 in the John C. Myers Convocation Center. The Math and Computer Science Department congratulates and thanks Dr. Paul Cao, Dr. Maduka Rupasinghe and Dr. Gordon Swain for sponsoring students and representing our department at this symposium.

This symposium is an opportunity for students to present their scholarly and creative work.


  • Dr. Maduka Rupasinghe, Assistant Professor of Mathematics, will sponsor Garrett Tresch. Garrett Tresch is a Mathematics and Actuarial Science major. Tresch will present Sieve Bootstrap-Based Prediction Intervals for GARCH Processes, during Oral Session III, 10:30 - 11:30 a.m. in the Faculty Room. Time Series deals with observing a variable - interest rates, exchange rates, rainfall, etc. - at regular intervals of time. The main objective of Time Series analysis are to understand the underlying processes and effects of external variables in order to predict future variables. This presentation uses the Sieve Bootstrap for computing prediction intervals.
  • Dr. Paul Cao, Associate Professor of Computer Science, will sponsor Paul Pernici. Paul Pernici is a Computer Science and Mathematics major. Pernici will present Comparing Feature Extraction and Feature Selection Algorithms in Pattern Recognition, during Oral Session IV, 2:00 - 3:00 p.m. in the Trustees Room. Pattern recognition is the science of discovering the inherent properties of large sets of data. A popular approach used an artificial neural network (ANN), which is a biologically inspired machine learning model capable of mimicking human cognitive functions.
  • Dr. Gordon Swain, Professor of Mathematics, will sponsor Joseph Scott Glorioso. Joseph Scott Glorioso is a Mathematics and Chemistry major. Glorioso will present Constant Speed or Constant Effort: Which is the More EfAcient Way to Run?", during Oral Session VI, 3:15 - 4:15 p.m. in the Trustees Room. The problem examined was whether it is more beneficial to run 5000 meters at constant speed or at constant effort while minimizing the time. The model, based on human data from literature, takes an input of runner's speed, wind speed, and incline and gives an output of volume of oxygen consumed. Using a simple conversion, VO2 was then converted to Calories expended.

    Tuesday, February 17, 2015

    AU Alumni News - Clay Harris


    Congratulations to Clay Harris. Harris is an Ashland University Actuarial Science major. Harris has accepted a position as Credit Risk Analyst with Key Bank. His job will involve risk management and will incorporate significant financial statement analysis. Congratulations, Clay, we wish you all the best in your new job!

    Monday, February 16, 2015

    Math 450 Senior Seminar Presents "Financial Ratios, Discriminant Analysis and the Prediction of Corporate Bankruptcy" on Tuesday, February 17

    In 1968, Edward Altman developed a model to predict bankruptcy up to three years before the event. This model is known as The Altman Z-Score and was developed using in-depth statistical techniques. This talk will focus on an introduction to traditional ratio analysis and how Altman combined this with statistics to predict bankruptcy. An overview of the multiple regression techniques used to create the model will be discussed, along with the overall results of the model. Further discussion will be on the application of the The Altman Z-Score in today's economic environment, as well as the application to some well-known companies.

    Math 450 Senior Seminar Presents
    "Financial Ratios, Discriminant Analysis and the Prediction of Corporate Bankruptcy"
    by Leslie Johnson
    Tuesday, February 17, 4:30 p.m.
    in Patterson 301

    All are Welcome!