Will.Octagon.Gibson

Canada

https://archive.org/details/@will_octagon_gibson

I love solving and making recreational math puzzles. My specialties at university were Computer Science and Mathematics.

If you love proving trigonometric identities or if you are preparing for a trigonometry test, check out my TRIGONOMETRIC IDENTITIES WORKBOOK at the Internet Archive. It contains 21 examples of proofs of trigonometric identities and several identities for you to prove.

The workbook is available at:

https://archive.org/details/@will_octagon_gibson

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28m	comment	Dissect a square grid into four congruent polyominos of same perimeter as the square Considering one polyomino, does it have to be connected?
2h	comment	Beating Harvard scientists Welcome to PSE (Puzzling Stack Exchange)!
4h	awarded	Good Question
9h	comment	A pair of Find-the-stars puzzles @Chaotic There are more puzzles like this. I have included links to them at the bottom of my original post. Cheers!
9h	revised	A pair of Find-the-stars puzzles Added links to two more problem sets
1d	comment	What is the probability that a randomly chosen $5\times5$ Latin square has $4$ distinct numbers for the $4$ corner entries? Thanks for the code. SAS seems quite powerful.
1d	awarded	Nice Question
2d	asked	A pair of Find-the-stars puzzles
2d	comment	What is the probability that a randomly chosen $5\times5$ Latin square has $4$ distinct numbers for the $4$ corner entries? Would you be willing to share the code that did the enumeration?
2d	accepted	What is the probability that a randomly chosen $5\times5$ Latin square has $4$ distinct numbers for the $4$ corner entries?
May 6	accepted	Can you determine the tasty item?
May 6	comment	Can you solve this unique chess problem of white's two queens vs black's six rooks? +1 What a lovely problem!
May 6	accepted	Can you dissect a 5x9 rectangle into nine (or ten) rectangles and/or squares?
May 6	asked	Can you determine the tasty item?
May 5	comment	longest path in 10x10 grid $+1 \ $ Fun puzzle! Here’s another solution to the warmup puzzle (different route but same length as yours): i.sstatic.net/3K0K4aSlm.png
May 5	accepted	Can you swap the positions of the 8 Chess bishops?
May 4	awarded	Supporter
May 4	comment	What allows us to go from $3^{3x} = 3^9$ to $3x = 9$? I wonder why you say “positive x” instead of “all x”.
May 3	revised	Both, One, Neither edited tags
May 3	revised	Use the numbers 8 6 4 2 = 25 Switched to MathJax