1 March 1999 Vol. 4, No. 9
THE MATH FORUM INTERNET NEWS
1999 NCTM Meetings | Formula FAQs: Polar/Spherical/Cylindrical |
MathSearch
1999 NCTM MEETINGS
San Francisco, California
http://www.nctm.org/meetings/1999/Annual/
The 77th annual meeting of the National Council of
Teachers of Mathematics (NCTM) will offer more than 1200
sessions spanning three days, April 22-24, 1999.
Technology sessions in computer labs will feature
24 workshops and 6 minicourses. In addition, an open lab
will be available for browsing, software previewing, and
e-mail checking.
The NCTM Electronic Resources Committee (ERC) will present
two half-day minicourses focusing on new resources for
the K-8 classroom and the 9-12 classroom:
http://www.nctm.org/meetings/1999/Annual/tech2000/Tech2000_index.html
Major technology speakers and highlights include:
- Alan Kay, Disney Imagineering
- Susan Schilling, Lucas Learning
- Tom Snyder, Tom Snyder Software
- CWaC, the Math Forum's "Conference Within a Conference"
- Web developers Suzanne Alejandre and Cynthia Lanius
http://mathforum.org/alejandre/nctm99.html
http://math.rice.edu/~lanius/pres/nctm/
Session information is available onsite:
http://www.nctm.org/meetings/1999/Annual/Sessions/
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MORE ANALYTIC GEOMETRY FORMULAS FROM THE DR. MATH FAQ
http://mathforum.org/dr.math/faq/faq.formulas.html
Robert L. "Dr. Rob" Ward has added three more new units to
the analytic geometry formula FAQ:
1. POLAR COORDINATES covers coordinates, points, directions,
translations, rotations, lines, triangles, and conic
sections (hyperbolas, parabolas, ellipses, circles).
http://mathforum.org/dr.math/faq/formulas/faq.polar.html
2. SPHERICAL COORDINATES are obtained by using polar
coordinates in a plane, adding a vertical axis
perpendicular to the plane passing through the pole,
and assigning a positive direction to it.
http://mathforum.org/dr.math/faq/formulas/faq.spherical.html
3. CYLINDRICAL COORDINATES are obtained by using polar
coordinates in a plane, and then adding a z-axis
perpendicular to the plane passing through the pole.
http://mathforum.org/dr.math/faq/formulas/faq.cylindrical.html
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MATHSEARCH - Jim Richardson
School of Mathematics and Statistics
University of Sydney, Australia
http://www.maths.usyd.edu.au:8000/MathSearch.html
MathSearch provides access to more than 90,000 searchable
English-language documents on mathematics and statistics
servers across the Web, primarily at the university and
research levels.
The search engine accepts up to four phrases, and reports
back:
- how many sentences in the document contain each phrase
- the document title if it exists (otherwise the URL is
given)
- the WWW server containing the document (if not already
given in the URL)
- the number of sentences in the document
- the total number of stems, other than the ones ignored,
in the document
A partial description of how the index information was
collected is provided:
http://www.maths.usyd.edu.au:8000/jimr/pe/Peregrinator.html
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CHECK OUT OUR WEB SITE:
The Math Forum http://mathforum.org/
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Discussion Groups http://mathforum.org/discussions/
Join the Math Forum http://mathforum.org/join.forum.html
Send comments to the Math Forum Internet Newsletter editors
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