Lesson plan
Conway triangle notation
In geometry, the Conway triangle notation simplifies and clarifies the algebraic expression of various trigonometric relationships in a triangle. Using the symbol for twice the triangle's area, the symbol is defined to mean times the cotangent of any arbitrary angle . The notation is named after English mathematician John Horton Conway, who promoted its use, but essentially the same notation (using instead of ) can be found in an 1894 paper by Spanish mathematician .
Article summary
In geometry, the Conway triangle notation simplifies and clarifies the algebraic expression of various trigonometric relationships in a triangle. Using the symbol for twice the triangle's area, the symbol is defined to mean times the cotangent of any arbitrary angle . The notation is named after English mathematician John Horton Conway, who promoted its use, but essentially the same notation (using instead of ) can be found in an 1894 paper by Spanish mathematician .
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Discussion questions
- Summarise the article in your own words. Which single claim would you verify first, and why?
- Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
- If two sources disagreed about one of these facts, what would you need in order to trust one over the other?
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