Larry Wang
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 Oct 5 revised GRE past papers added tag education Oct 5 revised How do I apply a Gaussian Blur (low-pass filter) to an image made up from a set of points? add tag signal-processing Oct 5 revised How do I apply a Gaussian Blur (low-pass filter) to an image made up from a set of points? added link Oct 5 revised How do you show that $d\theta = \frac{x dy - y dx }{x^2 + y^2}$? frac -> dfrac for visibility Sep 30 revised Help with a proof: Given $a\ne 0$ and $b\ne 0$ and $a \lt \frac{1}{a} \lt b \lt \frac{1}{b}$. Prove $a\lt -1$ added tag algebra-precalculus, replaced != with ≠ for clarity Sep 28 revised Party planning problem add tag algorithms Sep 25 revised Why do statements which appear elementary have complicated proofs? edited title to be closer to last paragraph of question Sep 25 revised Why do statements which appear elementary have complicated proofs? +tag philosophical Sep 20 revised How do I prove that $x^TAy = y^TAx$ if A is symmetric? texed equation, put question in title, add homework tag per question body Sep 17 revised Given a collection of items, how many ordered subsets can I make? texed sum, better title, tag -permutations +combinatorics Sep 17 revised How many 7-digit even numbers less than 3000000 can be formed using all the digits 1,2,2,3,5,5,6? tag -permutations +combinatorics Sep 17 revised Wedge product and cross product - any difference? removed unhelpful tag [vector], added tag [terminology] (maybe should be notation?) Sep 17 revised What are the names of graphs with 2 in/outbound edges? added [terminology] tag Sep 16 revised Optimal sample size? forgot the $; added 1 characters in body Sep 16 revised Counting placing items in bins according to boolean restrictions added text of moron's answer Sep 16 revised If$x$is a$p$-value, what do we call$x\cdot (1-x)$? made title specific, tag [name] -> [terminology] Sep 16 revised What is the meaning of the double turnstile symbol ($\models$)? unsupported \implies and \vDash changed to \Rightarrow and \models Sep 15 revised Is this proof of$a^{1/2}$being either integer or irrational circular/incorrect? nice-ified title. "bogus" quote now only remains in question body Sep 15 revised Improve my proof about this$C^\infty\$ function removed remark on tex that is no longer relevant Sep 15 revised Wedge product and cross product - any difference? added link to mentioned article