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Will.Octagon.Gibson
  • Member for 2 years, 7 months
  • Last seen this week
  • Canada
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About

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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Top posts
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answer
51
Is this Hashi puzzle unsolvable?
Jun 17, 2023
answer
50
4,4,2,6,2,10,4,_ sequence from 4th grade packet
Apr 25, 2024
question
34
How can the doctor measure out a dose (dissolved in water) of exactly 10% of a tablet?
Sep 22, 2024
question
32
What is the color of the final disc(s)?
Jul 31, 2024
question
31
Can you tile a 25x25 square with a mixture of 2x2 squares and 3x3 squares?
Apr 18, 2024
question
31
Are you radical enough to solve this SURDOKU?
Jul 8, 2024
question
29
Seth and Cain take turns picking numbers from 1 to 50. Who wins?
Aug 25, 2024
question
28
Where is the large cook promotion?
Apr 9, 2024
question
27
Make the number 606 50 percent bigger
Apr 21, 2024
question
27
12 piece cube packing puzzle
Jul 5, 2023
Top Meta posts
12
2
6
Let's not be too trigger-happy about closing original puzzles for lack of attribution
3
Is posting puzzles from a book/magazine/newspaper a violation of PSE policy if attribution is given?
3
Searching for my comments with score 5 or more
Top network posts
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83
What are some conjectures of your own?
18
What are some obscure radical identities?
15
Should I reset my password on Internet Archive?
14
I can’t post a new question on Puzzling Stack Exchange. Why not?
14
How to calculate the area of a quadrilateral given the (x,y) coordinates of its vertices