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| Recently we were looking back on a nice talk that was [given here by Richard Gass][1], and also observing that we now have more options how to write the code for analysis of video data. The new function [VideoMapList][2] is a really nice way to... |
| ![ heart animation ][1] Another year, another heart-shaped holiday to work toward. In this short post, we'll show how to use [FindExactCover][2] to find solutions such as seen in the image above. The domain shape was found by rasterizing the... |
| Hi Anton, thanks for this considerable effort. It's something I've been thinking about and experimenting on lately as well. As far as validation goes, is it possible to give more rigorous assurances hitting not only the 1-gram frequency distribution... |
| >Instead, I have come up in a unipolar world in which the empericists have clearly won, > delivering engineering marvels which seem lightyears away from anything that > logic-based approaches have demonstrated. This is a most apt observation,... |
| Actually, your wording is still confusing, because: g[Nothing] Out[] = g[Nothing] I would compare g[Nothing] with List[Nothing] as follows: f /@ g[Nothing] Out[]= g[f[Nothing]] f /@ List[Nothing] Out[]= {}... |
| > Actually this image gives us a hint that the implementation hasn't > reached optimal time, because it isn't exactly a causal graph. We > don't really need to calculate the squares at intermediary locations > along straight lines between events,... |
| > Compare with new code, where optimization would begin to become > noticeable on lists with more than 5000 elements (100+ pairwise actors). Testing on updated [hard square code][1] reveals this prediction to be quite accurate: ![timing... |
| You say that : mat2 . sol = vec2 but the dimensions of **mat2**, **sol**, and **vec2** are inconsistent: $$(3\times3)\cdot(3\times 3) = (3 \times 3 )\neq1 \times 3.$$ I thought you may have made a mistake, meaning by **sol** in this... |
| It turns out to be relatively easy to define trigonometric addition rules for ReIm four-vectors. Let's start with a simple proof of the property that even makes it possible to have addition rules: M1 = Dot[{Cos[x1], I c1 Sin[x1], I c2... |
| Too bad GMT is so close to Stonehenge time, no hopes of trying to make a high-precision measurement of the sun's castings at that exact place and time; although, they can probably be seen later this afternoon in USA. It would be great if we could... |