Top new questions this week:
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I was wondering whether Mathematica has the data to make a diagram showing a cutout of the Rocky Mountains, showing the elevations from San Francisco, say, to Denver, for example. Something along the ...
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Is it default setting of NSolve that it uses all my four cores of CPU?
Be aware that the following code made my computer non-respondent for about 18 seconds till it ...
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Suppose we define entropy[k] where:
...
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I observed a strange behavior using Polygon with Graphics3D in MMA14.1.
Here is my example.
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In order to solve $\partial_t X(t) = -i(M X(t) - X(t) M^*)$ (where * is conjugate-transpose), I wrote the following code:
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I have a function f and I would like its graph to be colored based on its monotonicity. Specifically:
Warm colors for the regions where the function is increasing, ...
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Suppose I am given a Hamiltonian. How do I find the Jacobian from the Hamilton equations of motion? Here is what I have done so far:
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Greatest hits from previous weeks:
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The film Arrival showed Wolfram Language code in action analysing alien logograms. A recent
blog describes some details and
mentions
a live-coding video by Christopher Wolfam. See also Stephen Wolfram'...
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I would like to plot those two datasets on top of each other. But they have very different range on the $y$ axis. How can I have two different axis?
I found the following on the help menu but quite ...
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I am trying to use the Export command to convert a list of plots into a *.gif file, and the command runs and executes well, but I can't find the file! Where is it ...
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I've seen questions before such as "What is the best open-source equivalent for Mathematica?", but that specific question (and that line of inquiry in general) cares more about the computer algebra ...
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I need to create a plot for export and inclusion in a report. Is there a better way to label curves than PlotLegends? From what I've read and my personal experience,...
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Is there a way to find a limit of a multivariable function, like
$$\lim_{(x,y)\to (0,0)} f(x,y)$$
with Mathematica?
When $f$ is continuous, we can use
$$\lim_{(x,y)\to (0,0)} f(x,y)=\lim_{(x,0)\...
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I received an email to which I wanted to respond with a xkcd-style graph, but I couldn't manage it. Everything I drew looked perfect, and I don't have enough command over ...
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Can you answer these questions?
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How to use mathematica to derive this vector equation:
\begin{equation}
\nabla \times (\mathbf{A} \times \mathbf{B}) = (\mathbf{B} \cdot \nabla) \mathbf{A} - (\mathbf{A} \cdot \nabla) \mathbf{B} + \...
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i have a string list:
lis = {"a",{"b","c"},"d"}
...and would like to replace "c" with "Q", to give
<...
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I'm trying to plot Poincaré surface of sections, using Hamiltonian formalism, for a system with 3 degrees of freedom. I have written a code for this. The code provides results for the integration of ...
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