| December 27, 1999 |
Solve xx3 = 3 |
| December 26, 1999 |
Upgraded pages on word problems |
| December 25, 1999 |
A cryptarithm #26 - this one in Swedish |
| December 18, 1999 |
Infinitude of Primes - A Topological Proof |
| December 16, 1999 |
Equichordal points: Just Do It |
| December 13, 1999 |
Invitation to MasterMind |
| November 3, 1999 |
Menelaus Theorem |
| October 7, 1999 |
A Matter of Appreciation |
| August 29, 1999 |
From Lewis Carroll to Archimedes |
| August 16, 1999 |
Benford's Law and Zipf's Law |
| August 15, 1999 |
The Exterior Angle Theorem - an appreciation, Scott Brodie |
| August 9, 1999 |
Divide a segment into n equal parts |
| August 7, 1999 |
Almost every integer has a digit 3 in it |
| August 6, 1999 |
Let Them Count by David Bogomolny |
| August 5, 1999 |
A redux of the 12 coin (a.k.a. Oddball) problem |
| July 31, 1999 |
An example of a non-constructible and non-trisectable angle |
| July 30, 1999 |
What, how, and the Web |
| July 19, 1999 |
Upgraded the Dots and Fractions page |
| July 18, 1999 |
Taylor circle |
| July 11, 1999 |
Dots and Fractions, a tiny problem |
| July 10, 1999 |
A Proof of the Fundamental Theorem of Algebra via a Maximum Modulus Theorem, Diego Vaggione |
| July 9, 1999 |
No two integers are equidistant from the square root of 2 |
| June 30, 1999 |
Place Value |
| June 4, 1999 |
There exist triangular numbers that are also square |
| June 3, 1999 |
Eigenvectors by Inspection by William A. McWorter Jr. |
| June 2, 1999 |
Buffon’s Needle Problem by Scott Brodie |
| May 30, 1999 |
Mathematics and Biology |
| May 19, 1999 |
Toads And Frogs Puzzle |
| May 14, 1999 |
Bankoff's Conundrum |
| May 12, 1999 |
Word Problems |
| May 2, 1999 |
Where To Start? |
| April 20, 1999 |
An Airline Problem by William A. McWorter Jr. |
| April 15, 1999 |
Matrices Help Relationships by William A. McWorter Jr. |
| April 12, 1999 |
Fagnano's problem |
| April 11, 1999 |
The Angle Bisectors |
| April 9, 1999 |
The Altitudes |
| March 31, 1999 |
The Euler Line and the 9-Point Circle |
| March 30, 1999 |
The Altitudes and the Euler Line |
| March 27, 1999 |
Salinon: From Archimedes' Book of Lemmas |
| March 21, 1999 |
Slider Puzzles, Don Greenwell |
| March 16, 1999 |
WHEN THE COUNTING GETS TOUGH, THE TOUGH COUNT ON MATHEMATICS, William A. McWorter Jr. |
| March 12, 1999 |
Trisectable angle that is not constructible |
| March 11, 1999 |
Irrational number to an irrational power may be rational whereas Complex number to a complex power may be real |
| March 10, 1999 |
Polygons: formality and intuition |
| March 6, 1999 |
An interesting proof of the concurrency of medians, Scott Brodie |
| March 3, 1999 |
Mathematics Education: Taking a Clue From The Recent Technological Revolution, an invited talk at MSET 99 - the Mathematics and Science Education and Technology International Conference, San Antonio, Texas, March 1-4, 1999 |
| February 28, 1999 |
Generalization of Napoleon's Theorem |
| February 6, 1999 |
Byzantine Basketball by W.McWorter |
| January 31, 1999 |
An Application of Mental Arithmetic to Highway Safety |
| January 29, 1999 |
On Motivation and Understanding |
| January 23, 1999 |
About a Line and a Triangle |
| January 19, 1999 |
The Means |
| January 10, 1999 |
The Medians |
| January 6, 1999 |
Thanks to Scott Brodie for Descartes' Rule of Signs |
| January 5, 1999 |
Lines, Circles and Beyond |
| January 2, 1999 |
Counting: The Beginning of Mathematics |
