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| bio | website | |
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| location | ||
| age | ||
| visits | member for | 1 year, 3 months |
| seen | 8 hours ago | |
| stats | profile views | 170 |
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Oct 15 |
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How to combine a set of Plots, including self-drawn Inset/Lines/Circles? What's wrong with a simple GraphicsGrid? |
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Oct 14 |
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2 non-linear equations with 2 unknowns which I cannot solve There's also a root at a = b = 0.000622898. |
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Oct 12 |
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Randomly packing spheres of fixed radius within a cube A relatively simple scheme could be to select a random sphere in the list, then creating a new sphere that touches it in a random direction. This got me to 1856 spheres in a few minutes. |
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Oct 11 |
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How to sum up large number of elements in a table quickly? 6,000,000 >> 2000 |
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Oct 11 |
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How to sum up large number of elements in a table quickly? Are A1 and A2 different each time you call f or are they constant? |
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Oct 8 |
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Implementing a LineStyleFunction for line plots @J.M. I was trying to show how to be a bit more general than just positive or negative. |
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Sep 21 |
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Argmax in a List Good stuff. That's what I enjoy about this site and about Mathematica. You're likely to get a readable solution, a fast solution, an alternative solution, an obscure solution, a silly solution, and a comparison between them. They all add to one's knowledge. |
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Sep 21 |
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Argmax in a List @belisarius I think he accidentally the timing worksheet. |
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Sep 19 |
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Using Functions as Arguments to FunctionmyNorm'[{x_, y_, z_}] := Dt[myNorm[{x, y, z}], t]? |
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Sep 6 |
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Drawing dessins d'enfants (bipartite graphs subject to certain conditions) And the white nodes (of degree 3) can be simplified. For a face with $2k$ edges, you can replace $k$ white nodes with a single node of degree $k$. Then make a planar embedding of what's left with the appropriate vertex degrees. Then replace the special nodes with their associated face. The replacement might get a little tricky if faces share edges. But your {18,2,1,1,1,1} is essentially a tree. |
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Sep 6 |
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Drawing dessins d'enfants (bipartite graphs subject to certain conditions) Omitting the black nodes is more than just for clarity in the case they are all of degree 2. They're not really relevant for laying out the graph. Once you've laid out your white nodes, the black ones just go in the middle of each edge. Or hang off the side for your two edge faces. |
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Sep 5 |
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CountryData and the areas of the world @belisarius Your rugby team has destroyed it :-( |
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Aug 26 |
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Celebration: How to golf a marriage with a prefix free code I couldn't work out how to do it properly, let alone golf it. :-/ |
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Aug 14 |
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Speed Up SphericalPlot3D The problem might be that your r is inefficient to evaluate. Perhaps tell us what that is to get more help. |
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Aug 13 |
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Programmatically minimize mathematica? @VitaliyKaurov FrontEndTokenExecute[SelectedNotebook[], "WindowMiniaturize"] |
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Aug 6 |
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Word Squares and Beyond Pretty good, but doesn't quite work as advertised when a partial solution is provided. Start with a known solution: findWordHypercube[2, 3] (* {{"m", "u", "d"}, {"u", "n", "i"}, {"d", "i", "g"}} *), then try with the bottom left filled in: findWordHypercube@{{_, _, _}, {_, _, _}, {"d", _, _}} (*{{"v", "e", "t"}, {"e", "r", "r"}, {"t", "r", "y"}}*). Where's my "d"? |
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Aug 2 |
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Histogram3D frame ticks with bin text labels rendered in x-y plane? I imagine you might need to Rasterize your labels, then use them as a Texture on a Polygon. But I don't know how you might show them outside the box (short of drawing your own box and axes). |
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Jul 30 |
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Finding the linear regression of data and plotting it It's all possible. Have a look at Fit, ListPlot, Plot, Show, AxesLabel and Epilog. |
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Jul 24 |
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Is there an easy way to put time ticks on a parametric plot? As an option to your plot, try Mesh -> 50 |
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Jul 19 |
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Problem with ParametricPlot You don't need to animate the whole 360 when you have 38-fold rotational symmetry. |
