Dennis Jaheruddin
Reputation
703
Top tag
Next privilege 1,000 Rep.
Create new tags
 Jan 7 awarded Popular Question Oct 23 awarded Yearling Aug 5 comment Can you complete the expression $2 \underline{ }\, \underline{ }\, \underline{ } \,\underline{ } 5 = 2015$? @immibis Perhaps I can state premptively that I am aware that eval should be avoided in most situations, but that I think this is a proper usage of eval. Aug 5 comment Can you complete the expression $2 \underline{ }\, \underline{ }\, \underline{ } \,\underline{ } 5 = 2015$? @hvd Incredible, I updated the answer slightly to match the question. I just ran the code for 4 slots but unfortunately no solution exists. Aug 5 revised Can you complete the expression $2 \underline{ }\, \underline{ }\, \underline{ } \,\underline{ } 5 = 2015$? added 324 characters in body Aug 5 answered Can you complete the expression $2 \underline{ }\, \underline{ }\, \underline{ } \,\underline{ } 5 = 2015$? Jul 8 awarded Nice Answer Jun 3 comment Name of the highest power of 2 smaller than or equal to a given number Even shorter (but perhaps less clear): power of 2 below, would only use this in speech, not in a definition: 'Here we have 16, the power of 2 below 18'. You may want to include 'greatest' and if you are talking about 16, just state that it is a power of 2. Feb 19 revised What happens when square root is performed in inequalities? It was already implied that this was the positive half of the solution, but now it is mentioned explicitly Feb 19 suggested approved edit on What happens when square root is performed in inequalities? Dec 10 comment Expectation of constraint random walk When I try X = [-1 -1 -1 +1 +1 +1 +1 +1 -1] your Y indeed matches my V. However when I try X = [+1 +1 +1 -1 -1 -1 -1 -1 +1] I don't see the match. Perhaps I just need to clear my mind a bit. Dec 10 comment Expectation of constraint random walk Thanks for your answer, but I don't see why $Y_n$ matches the dynamics of the question. For example: X = [1 1 1 -1 -1 -1 -1 -1 1] then S = [1 2 3 2 1 0 -1 -2 -1] and M = [1 2 3 3 3 3 3 3 3] so Y = [0 0 0 1 2 3 4 5 4] but based on this X the value I am interested in would be: V = [1 2 3 2 1 0 0 0 1] Dec 10 comment Expectation of constraint random walk @Did That was my intuition as well, however I could not find a proof or strong reasoning for this. Dec 10 asked Expectation of constraint random walk Dec 9 awarded Caucus Dec 4 comment Is it possible to simulate a floor() function with elementary arithmetic? This is at best a supplement to an existing answer. As such I flagged this. Oct 23 awarded Yearling Sep 30 awarded Explainer Sep 24 awarded Autobiographer Sep 19 comment Trick with 3-digit numbers, always get 1089 Why does this fail for 645? (or any A,B,C in general?)