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Newsletter: Math Forum Internet News No. 5.8 (21 Feb 2000)
Posted:
Feb 18, 2000 8:15 AM


21 February 2000 Vol. 5, No. 8
THE MATH FORUM INTERNET NEWS
Impact Project  Curry Center  Maths in Tens  Mayer Moore's Law and Slacking
THE IMPACT PROJECT  Curry Center
http://curry.edschool.virginia.edu/teacherlink/math/
The Impact Project develops materials for preservice and inservice secondary mathematics and social studies teachers wishing to incorporate technology into their teaching.
Activities on graphing calculators, Microsoft Excel, MicroWorlds (logo), and the Geometer's Sketchpad analyze, interpret, simulate, or explore such subjects as:
 AIDS and its spread in the United States  the centroid of a triangle  constructions of isosceles and equilateral triangles  the fourcolor theorem  the golden rectangle  infinite series through Baraville spirals  interest rates and the growth of money  Koch's snowflake  M&M data  the Pythagorean theorem  random events  recursion  smoking and lung cancer  sunspots and geomagnetic disturbances  tessellations, pure and Escherlike  trigonometric functions  the Witch of Agnesi
Interactive projects for MS Excel and MicroWorlds offer downloadable files for explorations of ratio, equation forms, fraction pie, maximizing area, coins and dice, projectile motion, and the Sierpinski polygon.
From the Curry Center for Technology and Teacher Education at the University of Virginia.
http://curry.edschool.virginia.edu/teacherlink/contents.htm
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MATHEMATICS IN TENS  Steve Mayer
http://dialspace.dial.pipex.com/town/way/po28/maths/
A British site  ten pages, each with ten items:
 problems to make you think  facts you may not know about maths  good maths books  mathematicians  maths jokes  reasons to study maths  mathematical links  mathematics software programs  mathematical constants  mathematical formulae
Ten littleknown facts about math include a comparison of British and American math terms such as "trapezium" and "trapezoid"; the ham sandwich and hairy ball theorems; how calculators do not use series for trig functions; and an elegant integral that evaluates the difference between 22/7 and pi.
http://dialspace.dial.pipex.com/town/way/po28/maths/facts.htm
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THE EFFECTS OF MOORE'S LAW AND SLACKING ON LARGE COMPUTATIONS
http://agave.as.arizona.edu/~chrisg/mooreslaw/Paper.html
A tongueincheek paper in which the authors show that, in the context of Moore's Law, overall productivity can be increased for large enough computations by 'slacking', or waiting for some period of time before purchasing a computer and beginning the calculation.
According to Moore's Law, the computational power available at a particular price doubles every 18 months. Therefore it is conceivable that for sufficiently large numerical calculations and fixed budgets, computing power will improve quickly enough that the calculation will finish faster if one waits until the available computing power is sufficiently better and starts the calculation then.
A paper by Chris Gottbrath, Jeremy Bailin, Casey Meakin, Todd Thompson, J.J. Charfman; Steward Observatory, the University of Arizona.
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The Math Forum ** 21 February 2000
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