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Topic: Newsletter: Math Forum Internet News No. 5.35 (28 Aug 2000)
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Sarah Seastone

Posts: 336
Registered: 12/3/04
Newsletter: Math Forum Internet News No. 5.35 (28 Aug 2000)
Posted: Aug 25, 2000 9:47 AM
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28 August 2000 Vol. 5, No. 35


Read This! - MAA Online | Let's Graph! - Lanius
BitArt, Spirolateral Series - Krawczyk

READ THIS! MAA Online Book Review Column
Mathematical Association of America

Online reviews of new and current books of interest to
mathematicians, including such books as The Wild Numbers,
The Advent of the Algorithm, Contemporary Issues in
Mathematics Education, Reading the Principia, An Introduction
to the Mathematical Theory of Waves, The Importance of Being
Fuzzy, and many more.

MAA Online has been publishing book reviews in the Read This!
column since 1996. Use the index to all book reviews online
so far to find older reviews by author, by title, by topic,
and by reviewer:


LET'S GRAPH! - Cynthia Lanius

Canga Rue Middle School conducted a survey of all its
students to determine some of their interests. A graph
illustrates the results of one of the questions. From
the information provided, answer the following questions:

- How many students are at Canga Rue?
- What fraction prefer either pizza or hamburgers?

An interactive investigation of graphing, showing both
horizontal and vertical bar graphs. Students may adjust the
values on the graphs for favorite pastimes, or they may
design and administer a survey on a question that interests
them, enter the data, and make a bar graph using this page.

From Cynthia Lanius' math lessons, which feature subjects
as diverse as infinite series, fractals, cartography,
dueling pinwheels, a hot tub (interpreting graphs),
and more:



Click on a spirolateral in one of these galleries to display
a full-size version, see a self-running demonstration of a
variety of spirolaterals, or generate one of your own and see
all the reversals.

"The Art of Spirolateral Reversals," a paper by Robert J.
Krawczyk (available in PDF format), "continues an
investigation into spirolaterals as geometry to generate
artistic forms of unexpected complexity and beauty... with
two-dimensional representations of spirolaterals and forms
based on reversals of turns. Using mathematical and
computer-based methods, issues of closure, variation,
enumeration, and predictability are discussed. The overriding
interest is to develop methods and procedures to investigate
geometry for the purpose of inspiration for new architectural
and sculptural forms."



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The Math Forum ** 28 August 2000

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