Math Circle

This weekend, the Math Circle will apply the backwards secret method to the problem of Finite Arithmetic. Math Circle OnlineSunday October 5 7pm Look to email for login instructions.

The Math Circle will continue with its investigation of the 2000 year old Secret Method, but this week we’ll run the algorithm backwards. Math Circle OnlineSunday September 28 7pm Look to email for login instructions.

This weekend, the Math Circle is going to learn a Secret Method, which is probably the most important algorithm that is NOT usually taught in schools, and is over 2000 years old. Math Circle OnlineSunday September 21 7pm Look to email for login instructions.

The new Math Circle season begins online this weekend! We will start with a game called Zebra, invented at Dalhousie University in Canada. Please note, the Math Circle is a 501(c)(3) non profit. We encourage all participants to make a tax-deductible donation to support our activities. Math Circle OnlineSunday September 14 7pm Look to email …

Zebra Game Read More »

This weekend we will play a new game called Polyomino Fortresses. Unfortunately, the rules are not provided – you’ll have to figure those out by yourself. Then we can prove some theorems about it… Math Circle OnlineSunday 8 June 2025 7pm Look to email for login instructions.

This Sunday, we will play a mathematically themed card game called Creature Capture. Math Circle OnlineSunday 18 May 2025 7pm Look to email for login instructions.

This Sunday, we continue our investigation of the Coprime Culling game. There is an underlying pattern, first discovered by Gauss in 1801. Math Circle OnlineSunday 4 May 2025 7pm Look to email for login instructions.

This Sunday, we continue our investigation of the Coprime Culling game. Math Circle OnlineSunday 27 April 2025 7pm Look to email for login instructions.

We will continue our investigation of Defeated Soldiers. Time permitting, we will look at a new topic: coprimes, and the patterns that result when we multiply them. Math Circle OnlineSunday 20 April 2025 7pm Look to email for login instructions.

This weekend the Math Circle turns its attention to a nearly 2000 year old problem: Defeated Soldiers. Surrounded by enemy troops, the outlook is grim. There is no alternative. All must perish – except for one. Math Circle OnlineSunday 13 April 2025 7pm Look to email for login instructions.