george2079

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Jan 7	revised	Efficient code for the Ten True Sentences puzzle added 451 characters in body
Jan 7	answered	Efficient code for the Ten True Sentences puzzle
Jan 7	comment	Efficient code for the Ten True Sentences puzzle Isnt that cheating to use part of the known solution? Anyway this would seem to lend itself to a genetic algorithm, or at least track solutions that have been tried so you dont repeat.
Jan 4	answered	How to get exact roots of this polynomial?
Jan 4	revised	How can I find the lines that go through? added 165 characters in body
Jan 4	revised	How can I find the lines that go through? added 1932 characters in body
Jan 3	revised	How can I find the lines that go through? added 315 characters in body
Jan 3	answered	How can I find the lines that go through?
Jan 3	comment	How can I find the lines that go through? Better to create an array {x/h , y/h , z/h } initialized to all zero, then set to 1 each vozxel that a segment passes through. Unless of course its so big that you are memory limited.
Jan 3	comment	Turn list of edges into a polygon function nice -- suggest you edit to point out the assumptions, polygon must be convex and points must be ordered counter clockwise.
Jan 2	comment	Turn list of edges into a polygon function related mathematica.stackexchange.com/questions/9405/…
Jan 2	comment	Turn list of edges into a polygon function is this related to your earlier question? There are better ways of finding areas and centroids of polygons..
Jan 2	revised	Finding the centroid of the area between two curves added 886 characters in body
Jan 2	comment	Finding the centroid of the area between two curves oops worked on that before i saw Danial's note. And it does indeed work with plain Integrate (which surprised me..)
Jan 2	answered	Finding the centroid of the area between two curves
Jan 2	comment	Finding the centroid of the area between two curves what is insuffieient is we don know how general the curves can be. Always monotonic functions of x with exactly two intersection points? Points guaranteed obtainable in closed form?
Jan 2	comment	How to fix corrupted notebooks? There is a not on this at wolfram support support.wolfram.com/kb/3300 (not tried myself)
Dec 13	awarded	Nice Question
Nov 12	awarded	Necromancer
Oct 15	comment	Randomly packing spheres of fixed radius within a cube sorry..in my head that was outside the loop. Now i'm not sure that seeding the layer is necessary, you could find the mean z for each layer and move up a fixed amount. In the end i expect that seeding is a small part of the time though.