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Dec
7
comment Flipping Origins of Axes 3D Plot
I think you've just rotated the plot to make it look like that. Try rotating it 180 degrees.
Dec
6
revised When is RegionMeasure[ImplicitRegion[…]] faster than (N)Integrate[Boole[…]]?
added 1097 characters in body; edited title
Dec
6
asked When is RegionMeasure[ImplicitRegion[…]] faster than (N)Integrate[Boole[…]]?
Dec
5
comment Rectangle or Polygon with no filling
It's because you set Opacity[0], so the line is completely invisible. To disable filling, use FaceForm[None] instead.
Dec
4
comment Integral Bounds and RegionPlot3D
I am surprised by your surprise. What did you think the RegionPlot3D function was for if not this?
Dec
3
comment Trying to Visualize a Collatz - The Collatz conjecture
I'm sorry, this is really bothering me -- there's no such thing as "a collatz". Lothar Collatz is the name of the person who posed the Collatz conjecture. What you have there is a function, and you are asking to visualize the adjacency graph of your function. (Which leads to another problem: functions don't have adjacency graphs.)
Dec
3
comment Plotting Riemann Surface of $w(z)=\sqrt{1-z^{2}}$
Shouldn't your Coloring be Hue[Rescale[ArcTan[.8 Im[w]], {-Pi/2, Pi/2}]]?
Nov
29
comment how to plot 3d graph for x^2 - y^2 = 1?
Try ContourPlot3D.
Nov
28
comment generating randomly oriented non-intersecting cylinders
I'm afraid your code thinks that the cylinders Cylinder[{{-1, 0, 0.1}, {0, 0, 0}}, 1] and Cylinder[{{1, 0, 0}, {2, 0, 0.1}}, 1] are intersecting. (I had to tilt them slightly otherwise it gave me a 1/0 error.)
Nov
26
answered Fourier Series and epicycles - How to find the radii and angular velocities from a function's Fourier Series expansion
Nov
26
comment Fourier Series and epicycles - How to find the radii and angular velocities from a function's Fourier Series expansion
Ah, I see. The code is plotting the image of (an approximation to) $t^2$ in the complex plane, which is a subset of the real line. Try taking the Fourier series of $t + it^2$, whose image is the graph of $y=x^2$.
Nov
26
comment Fourier Series and epicycles - How to find the radii and angular velocities from a function's Fourier Series expansion
I don't understand why you can't plot the second series if you can plot the first. The radii and angular velocities are just {-2, -2, 1/2, 1/2, Pi^2/3} and {-1, 1, -2, 2, 0} respectively.
Nov
26
comment Solving this system of nonlinear equations
It seems to me your question is fundamentally mathematical more than it is Mathematica-specific, so you may have better luck asking on the maths StackExchange.
Nov
25
comment How to draw normal vector in Mathematica?
Use BoxRatios -> Automatic.
Nov
23
comment Getting $e$ closer than $0,001$?
-1: This finds the first $m$ for which $\frac1{m!}<0.001$, which is not necessarily the same as the first $m$ for which $e-\sum\limits_{n=0}^{m-1}\frac1{n!}<0.001$. For example, if you replace $0.001$ with $0.2$, this code gives 3 though the correct answer is 4. @Atvin
Nov
22
awarded  Populist
Nov
22
awarded  Good Answer
Nov
21
comment default RGB coloring
"the result image is in CMYK" ...Um, it isn't? A Graphics is not an Image and doesn't have an intrinsic colour space, unless you Rasterize it or do Image[graphics, ColorSpace -> space]. How are you finding it to be "in CMYK"?
Nov
20
comment Animate $2D$ butterfly curve in $3D$
Are you sure you've seen a butterfly flying in real life, J.M.? :)
Nov
19
comment How to make a blob in 3D?
Couldn't your ParametricPlot3D be replaced with the slightly easier SphericalPlot3D?