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Mar
29
comment Morphological Components with periodic boundary conditions
As it turns out, MorphologicalComponents does take a Padding option, but Padding -> "Periodic" does not work.
Mar
29
comment Morphological Components with periodic boundary conditions
@David: I think he just wants the grid to be treated as periodic, so that a cell adjacent to the top edge and a cell adjacent to the bottom edge with the same horizontal coordinate should be connected (and similarly for the left and right edges). In this example, the five-cell dark blue component and the two-cell purple component in the top middle-left should both be parts of the large orange component at bottom left.
Mar
28
revised Fitting to a sigmoidal model
added 1400 characters in body
Mar
28
revised Interpolation and points of non-differentiability
answer to edited question, prompted by @Kuba
Mar
28
comment 3D plots with a continuous and discrete input
Actually I think this is a duplicate of Plotting several functions. Heike's answer there is the same as the one I posted here.
Mar
27
answered 3D plots with a continuous and discrete input
Mar
26
revised Modular surface of tri-focal cassini curve ContourPlot3D missing feet
added 530 characters in body
Mar
26
answered Modular surface of tri-focal cassini curve ContourPlot3D missing feet
Mar
26
comment Modular surface of tri-focal cassini curve ContourPlot3D missing feet
@Kuba: You took 4 seconds to write a better explanation of the sampling problem. :)
Mar
26
comment Modular surface of tri-focal cassini curve ContourPlot3D missing feet
It's a sampling issue; you could try increasing PlotPoints or MaxRecursion. But why not apply Plot3D to $|c(x+iy)|^{1/3}$ instead? It'll be much faster, and then you can increase MaxRecursion to like 5 and get a really nice plot very quickly.
Mar
26
revised Specific entry of inverse of large matrix
added 12 characters in body
Mar
26
comment Solving a system of 4 logarithmic equations?
I'm just curious why you posted an answer that finds a non-solution eight hours after RiemannZeta already proved that there are no solutions.
Mar
26
comment Solving a system of 4 logarithmic equations?
I get a warning, FindRoot::cvmit: Failed to converge to the requested accuracy or precision within 100 iterations. And substituting the values into the equations gives $11.5863 = 20$, $6.32768 = 125$, $4.74367 = 710$, $4.49181 = 1350$.
Mar
24
comment Area of a convex polygon with a set of points
If your polygon is known to be convex then ordering by angle relative to the mean of the vertices will also work.
Mar
22
comment Eigenvector Anomaly
@rm-rf: Done. I hope Peter doesn't mind.
Mar
22
revised Eigenvector Anomaly
changed to a question about Mathematica
Mar
22
comment Eigenvector Anomaly
If we edited the question to replace the W|A queries with Mathematica commands, the difference would remain and the question would be on-topic. But is that too radical a change from the original question?
Mar
21
comment Choosing $n$ equidistant points on a circle with given radius and center
@Pavithran Your code creates $n+1$ points of which the first and last are the same. I'm not sure that's what you want.
Mar
19
comment Plot 3D density
Have you tried ListContourPlot3D? By the way, your title is misleading: this is a 3D density, that is, a density over a three-dimensional region.
Mar
18
comment How can I define a 3d-body through different views?
Here's a smooth plot of what I think is the same object: ContourPlot3D[x^2 + (y/(1 - z))^2 == 1, {x, -1, 1}, {y, -1, 1}, {z, 0, 1}, BoxRatios -> Automatic] i.stack.imgur.com/CIqpO.png