Category Archives: Demonstrations

The Theorem of Trithagoras; Pythagoras is for Squares. The MathsJam 2017 Five-minute Presentation.

Posted on January 13, 2018 by davescarthin

Mention Pythagoras and Pythagorean triangles spring to mind, but his theorem is really about the area of certain squares (regular polygons with four sides) and sums of their areas, which happens to relate to the sides of the aforesaid triangles. … Continue reading →

Posted in Demonstrations, Mathematics, Uncategorized | Tagged 1105, 1729, Carmichael numbers, Hardy-Ramanujan, John Read, MathJam, MathsJam, pseudoprimes, Pythagorean triples, Taxicab Number, Trithagoras, Yarnfield | Leave a comment

Illustrated Talk at Scarthin Books, Cromford, Derbyshire

Posted on June 28, 2014 by davescarthin

I’ll be giving an illustrated talk on Lattice Labyrinth Tessellations in the Bookshop Cafe on Saturday 12th. July, 2014. There will be a break for a light buffet (free but small donations welcomed). This is a meeting in Scarthin Books’ … Continue reading →

Posted in Demonstrations | Tagged Bridges 2014, Cafe Philosophique, Irrgarten, labyrinthe, labyrinths, Lattice Labyrinths, Loeschian, Maze, mazes, Scarthin Books, Scarthin Cafe, tessellation, Tessellations, tiling, Tilings | Leave a comment

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Category Archives: Demonstrations

The Theorem of Trithagoras; Pythagoras is for Squares. The MathsJam 2017 Five-minute Presentation.

Illustrated Talk at Scarthin Books, Cromford, Derbyshire

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