Sam Hocevar
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# 21 Actions

 Dec22 awarded Nice Answer Sep23 answered What is the smallest value of $x^2+y^2$ when $x+y=6$? Jul30 awarded Yearling Jul28 answered Can the golden ratio accurately be expressed in terms of e and $\pi$ Feb15 answered Formal proof for $(-1) \times (-1) = 1$ Dec18 comment Can't argue with success? Looking for “bad math” that “gets away with it” Maybe this could be explained? I had to Google for what it meant because I have never learned to write down a division like that. Jun4 awarded Yearling Apr21 comment Getting the sequence $\{1, 0, -1, 0, 1, 0, -1, 0, \ldots\}$ without trig? @bodacydo - your solution is not a solution; it never outputs -1. Apr15 answered Getting the sequence $\{1, 0, -1, 0, 1, 0, -1, 0, \ldots\}$ without trig? Apr15 comment Getting the sequence $\{1, 0, -1, 0, 1, 0, -1, 0, \ldots\}$ without trig? Probably not the fastest, because there is (((x+3)>>1)&1) - ((x>>1)&1). Jan11 awarded Nice Answer Jan10 awarded Critic Jan10 awarded Editor Jan10 revised Proving the inequality $e^{-2x}\leq 1-x$ shorter proof Jan10 awarded Teacher Jan10 answered Proving the inequality $e^{-2x}\leq 1-x$ Dec15 comment Fast 2D Line Triangle Intersection test Sorry, please disregard; they're projection directions, all right. Dec15 comment Fast 2D Line Triangle Intersection test For the fourth direction, don't you mean the vector normal to the line segment instead? Nov11 awarded Supporter Nov4 comment Sequence of numbers with infinite number of primes An interesting claim to investigate would be that there exists a number $n$ such that there is an infinite number of primes on the $n$th position.