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Hello! Here is the info about the next SUMS talk
with FREE PIZZA!!!!!
Date: Wednesday November 6, 2002
Place: Hylan 901 (Undergraduate Math Lounge)
Time: 8:00pm
Speaker: Dr. Mark McKinzie
Monroe Community College
co- winner of the 2002 Allendoerfer award for his article with Curtis
Tuckey on "Higher Trigonometry, Hyperreal Numbers, and Euler's Analysis
of Infinities" in Math Magazine (December 2001)
Title:
Precalculus circa 1748: Euler's Introduction to the Analysis of
Infinities
Abstract:
Leonhard Euler's "Introductio in analysin infinitorum" (1748) was
explicitly written as a precalculus text. Euler writes: "Although
analysis does not require an exhaustive knowledge of algebra, ...
still there are topics which prepare a student for a deeper
understanding. However, in the ordinary treatise on the elements of
algebra, these topics are either completely omitted or are treated
carelessly. For this reason, I am certain that the material I have
gathered in this book is quite sufficient to remedy that defect." The
contents of Euler's text, including derivations of the power series
for the exponential, logarithmic and trigonometric functions, the
factorizations of the sine and cosine functions, and the consequent
evaluation of the sum of the reciprocal squares, bear scant
resemblance to what we currently teach in our own precalculus classes.
In this talk, we will examine Euler's arguments for the above
results, and give an overview of recent interpretations of Euler's
"Introductio in analysin infinitorum" in light of modern developments
in nonstandard mathematics.
Hope you can make it!
-Inga
Comments: In Euler's time there didn't seem to be a lot of concern about whether infinitesimals existed or whether series converged -- that came later, with Cauchy and Weierstrass who were more rigorous -- or were they? Maybe Euler knew what he was doing. About 40 years ago Abraham Robinson showed that in fact it was possible to reason logically with infinitesimals, founding the subject frequently known as Non-standard Analysis. If the timing had worked out a bit differently would we be doing calculus with infinitesimals now instead of limits? And would that be an improvement?
-- Mike
(see also Euler, The Master of Us All)
Posted by Michael Gage on 10/28/02; 3:27:59 AM
from the dept.
Discuss
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