================================== Top new questions this week: ==================================
[Writing a word with straight lines] http://mathematica.stackexchange.com/questions/113403/writing-a-word-with-straight-lines
Here is an interesting way to write a word: (it is from a poster for the International Museum Day 2006; I believe it even won an award at an international design competition)
by Boris Ljubicic. ...
- asked by VividD (59 votes), answered by Martin Buttner (54 votes)
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[Numerical inverse Laplace-Hankel transform for a highly oscillatory function] http://mathematica.stackexchange.com/questions/113240/numerical-inverse-laplace-hankel-transform-for-a-highly-oscillatory-function
When trying to reproduce the result of this paper about numerical solution of Lamb’s problem, I encountered the double integral (to be more precise, the 0-order inverse Hankel-Laplace transform) of a ...
- asked by xzczd (11 votes)
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[Fitting Stradivari’s scroll] http://mathematica.stackexchange.com/questions/113273/fitting-stradivaris-scroll
How can I find the simplest curve that gives me a scroll like this?
This is where I am at the moment and doing it by hand is becoming more and more cumbersome.
First, take a drawing of the scroll ...
- asked by tsuresuregusa (11 votes), answered by nikie (13 votes)
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[NDEigensystem cannot solve numerically the 3D Coulomb problem, while DSolve returns the right answer] http://mathematica.stackexchange.com/questions/113520/ndeigensystem-cannot-solve-numerically-the-3d-coulomb-problem-while-dsolve-retu
After having derived by hand the eigenvalues and eigenfunctions for the 3D and 2D hydrogen atom, I want to solve the systems numerically using Mathematica. I need to do this because my next step is to ...
- asked by Matthew Brunetti (9 votes), answered by user21 (4 votes)
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[Make the moon’s 3D gif] http://mathematica.stackexchange.com/questions/113217/make-the-moons-3d-gif
How do I make the following gif
I tried:
moon = Import[ "https://upload.wikimedia.org/wikipedia/commons/f/f0/Full_Moon_as_Seen_From_Denmark.jpg"]; {r, g, b} = ColorSeparate[ImageResize[moon, ...
- asked by vito (9 votes), answered by Kuba (13 votes)
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[How to generate this structure of a list without ‘While‘ and the like?] http://mathematica.stackexchange.com/questions/113307/how-to-generate-this-structure-of-a-list-without-while-and-the-like
I need to create a list that holds, for given integer d, the elements \(1,\ldots ,d,d+2,\ldots ,2d,2d+3,\ldots ,3d,3d+4,\ldots ,d^2\) where \(\ldots \) is just denoting increment by 1 until the next written ...
- asked by Lukas (8 votes), answered by ciao (3 votes)
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[Join a list with 6, 6, 2 dimensions with a list 6, 6 dimensions] http://mathematica.stackexchange.com/questions/113630/join-a-list-with-6-6-2-dimensions-with-a-list-6-6-dimensions
listA = {{a1, a2, a3, a4, a5, a6}, {b1, b2, b3, b4, b5, b6}, {c1, c2, c3, c4, c5, c6}, {d1, d2, d3, d4, d5, d6}, {e1, e2, e3, e4, e5, e6}, {f1, f2, f3, f4, f5, f6}} listB = {{{n1, p1}, {n2, p2}, ...
- asked by SPIL (7 votes), answered by Kuba (6 votes)
================================== Greatest hits from previous weeks: ==================================
[How to plot an ellipse?] http://mathematica.stackexchange.com/questions/20100/how-to-plot-an-ellipse
I’m new to Mathematica, and I’m finding it difficult to plot an ellipse. I tried using
Plot[(x/5)^2 + (y/3)^2 == 1, {x, -5, 5}, {y, -3, 3}]
but I’m getting some errors. Is there something wrong ...
- asked by Sriram (5 votes), answered by Jens (15 votes)
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[Multivariable Taylor expansion does not work as expected] http://mathematica.stackexchange.com/questions/15023/multivariable-taylor-expansion-does-not-work-as-expected
The basic multivariable Taylor expansion formula around a point is as follows:
\[ f(\mathbf r + \mathbf a) = f(\mathbf r) + (\mathbf a \cdot \nabla )f(\mathbf r) + \frac {1}{2!}(\mathbf a \cdot ... \]
- asked by matheorem (24 votes), answered by Jens (29 votes)
================================== Can you answer these? ==================================
[JournalArticle does not react on the PointSize option] http://mathematica.stackexchange.com/questions/113547/journalarticle-does-not-react-on-the-pointsize-option
The Default StyleSheet recognizes the PointSize option for ListPlot:
ListPlot[Table[Table[{i, j*i}, {i, 1, 10}], {j, 1, 3}], PlotStyle -> {{Red, PointSize[0.1]}, {Blue, PointSize[0.05]}, ...
- asked by Alexei Boulbitch (2 votes)
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[How to trace the stylesheet directives responsible for the selected text’s appearance?] http://mathematica.stackexchange.com/questions/113495/how-to-trace-the-stylesheet-directives-responsible-for-the-selected-texts-appea
By way of example, in a typical Mathematica interactive session, one sees text content as shown below:
Three different text styles can be seen in this figure: input, output, and the style for the ...
- asked by kjo (5 votes)
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[How do I get my ZWO ASI120MM astro-camera to work in MMA?] http://mathematica.stackexchange.com/questions/113481/how-do-i-get-my-zwo-asi120mm-astro-camera-to-work-in-mma
I am using Windows 10 + MMA 10.4.1. I bought a ZWO ASI120MM astro camera which I want to use as a guiding camera during astrophotography. From this site (http://astronomy-imaging-camera.com/software/) ...
- asked by Max (2 votes)