Victor Engel
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 Feb 16 comment What is mathematically significant about this algorithm? An assumption is being made that the original order will be produced. Can someone prove this is the case? Feb 15 comment The limit of sin(n!) I think this question may be corollary to showing whether n! mod pi converges. That may be an easier question. If it does converge, then for any d, there is some n such that if m > n, then m! - n! mod pi < d. Feb 15 comment The limit of sin(n!) Yes, certainly, there is a much earlier factorial that works. I simply chose the most obvious one to avoid needless complexity. The question wasn't about where the limit reached zero. Also, I agree, the real definitions of these functions are in radians, but I felt an answer addressing degrees was appropriate since many people use degrees most of the time. Nov 6 comment Is math built on assumptions? I think the problem is the word usage. It should be "Suppose the value of x...", rather than "Assume the value of x...". It's a subjunctive assumption, so not an assumption at all. Nov 24 comment Check if a point is within an ellipse I apologize. The coding of the fractions didn't take. Perhaps someone can help me out with that and point me to a reference? I was using meta.math.stackexchange.com/questions/5020/… as a guide. Edit: I figured it out. I was missing the \ tag.