Draconar
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 Apr 27 awarded Popular Question Feb 2 accepted Geometric Meaning behind the algorithm (slope of the line + ray casting) Feb 2 comment Geometric Meaning behind the algorithm (slope of the line + ray casting) where in the equation can we see that? :_( Feb 2 comment Geometric Meaning behind the algorithm (slope of the line + ray casting) I'm really not being able to visualize "the x-coordinate of the intersection of the horizontal line going thru $testy$ and the edge". How can we be sure that it is a straight line (no slope) since with started with a comparison between the slope coefficients... Feb 1 asked Geometric Meaning behind the algorithm (slope of the line + ray casting) Nov 16 accepted Book that covers Counting & Probability basics Nov 11 asked Book that covers Counting & Probability basics Aug 13 comment Is that a permutation or a combination problem? if the order was relevant, what would the answer be? Aug 13 accepted Is that a permutation or a combination problem? Aug 13 comment Is that a permutation or a combination problem? @user190090 no, it is not relevant. Aug 13 asked Is that a permutation or a combination problem? Jun 30 answered How to solve this combinatorics problem? Jun 30 accepted How to solve this combinatorics problem? Jun 25 asked How to solve this combinatorics problem? May 20 awarded Yearling Nov 29 awarded Critic Nov 29 revised fast mental arithmetic: is it an algorithm or table-like structure? added 231 characters in body Nov 29 accepted fast mental arithmetic: is it an algorithm or table-like structure? Nov 29 comment fast mental arithmetic: is it an algorithm or table-like structure? stripping the fluffly the question was "When solving problem X by heart, how does the mind reaches the solution very fast? by 'running' an algorithm or 'accessing' a table". Nov 29 comment fast mental arithmetic: is it an algorithm or table-like structure? thank you for the reference!