Math Circle

Math Circle Resumes!

The Granite State Math Circle will resume the week of August 17th. The format will be weekly 1.5 hour online sessions, conducted via Zoom and Jamboard. Circle attendance is limited to 12 participants, and preference is given to existing members on a first come first serve basis. If you’d like to join, or would like …

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Permutations and Re-permutations of A,B,C,D

We investigate permutations and re-permutations of four items A, B, C, and D – and how they are related to certain objects studied by a famous Greek philosopher. Math Circle OnlineWednesday May 27, 2020 4:00-5:30PM EST Look for email with login instructions.

Permutations and Re-permutations Cont’d

The Math Circle continues its investigation of the Permutations and Re-permutations of 3 objects. Math Circle OnlineSaturday May 23, 2020 9:30-11:00PM EST Look for email with login instructions.

Permutations and Re-permutations

The Math Circle resumes this week: Math Circle OnlineWednesday May 20, 2020 4:00-5:30PM EST The topic is: Permutations and Re-permutations. Suppose you have three distinct objects – A, B, and C. There are several ways to arrange these three objects, for example,  ACB or BAC, that we call permutations. When we combine permutations, we might …

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Logical Geometry 3D – 2

We continue our study of Logical Geometry in the Third Dimension. Math Circle OnlineWednesday 6 May 2020, 4:00-5:30AM Check your email for login instructions.

Logical Geometry in 3D

In this session, we leave the comfortable planar world and take a peek at Logical Geometry in the Third Dimension. Math Circle OnlineSaturday 2 May 2020, 9:30-11:00AM Check your email for login instructions.

Logical Geometry – Part 3

We will take a look at still larger systems of finite geometry. Along the way, we will investigate a broken arithmetic system (and how to fix it). Math Circle OnlineThursday 30 April 2020, 4:00-5:30PM Check your email for login instructions.

Logical Geometry Cont’d

We continue our investigate of finite geometry – what new geometry do we get when we replace modulo 2 arithmetic with modulo 3 arithmetic? Math Circle OnlineSaturday 25 April 2020, 9:30-11:00AM Check your email for login instructions.

Logical Geometry

The Math Circle meets this Wednesday afternoon. What happens when combine Logical Arithmetic with Lines to Infinity? We’ll invent a new system of geometry that’s much simpler than the one you learned in school. Math Circle OnlineWednesday 22 April 2020, 4:00-5:30PM Check your email for login instructions.

Counting Cattle

This Saturday, we’ll continue our study of “very close” rational solutions to the sqrt(N) problem… finding an approximate value for sqrt(61). Then we’ll take a look at an ancient puzzle by Archimedes about counting the number of cattle in Sicily. Math Circle OnlineSaturday 18 April 2020, 9:30-11:00AM Check your email for login instructions.