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This is cool

• freedomben 2y ago
  Why is it cool? What is it about TFA that interests you? What does it do that other resources have not done? Does it help you think about the problem in a different way? I've always been fascinated with the perfect squares, and various patterns that arise from observing them. I love how the article examines the patterns and then extrapolates the study of the patterns to a tool for memorization.