Top new questions this week:
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Ernst Haeckel (1834 - 1919) was a German philosopher, physician, artist and professor of zoology at the University of Jena. He promoted and popularised Charles Darwin's work in Germany.
Haeckel (left)...
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I am trying to solve the radial Schrödinger equation using NDEigensystem but I am running into some issues. There are posts about doing this (see here for example), ...
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Trying to generate a simple QR code with ← or U+2190. I got varying results: the same in Mathematica versions 12.3 and 13.1 but very different in version 13.3.
Mathematica 13.3 was updated to ...
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Three sinusoids at the same frequency are superimposed:
Cos[3.1 - t] + 5 Cos[π/4 + t] + 2 Sin[0.3 + t]
How can the resulting oscillation be stated in the following ...
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I'd like to obtain a symbolic result for the following integral:
Sigmoid[x_] := 1/(1 + Exp[-x])
Integrate[Sigmoid[x]*Log[Sigmoid[x*w]], {x, -Infinity, Infinity}]
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I believed that using Quiet, all message output would be controlled.
Quiet@Plot3D[x, {x, 1, 2}, {y, 1, a}]
Quiet@ContourPlot[x + y == 1, {x, 1, 2}, {y, 1, a}]
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The kernel to the left of the matrix
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Greatest hits from previous weeks:
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I want to get the following expression from Mathematica to $\LaTeX$:
\begin{bmatrix}
E_{\parallel} \\ E_{\perp}
\end{bmatrix}
I have tried to use inbuilt 'symbol' character from the special ...
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Deep convolutional neural networks are very good at computer vision related tasks. Optical Character Recognition (OCR) is one important branch of computer vision. In fact, the convolution neural ...
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How would I plot $x^2+y^2=1$ in 3D (it would form a cylinder)? Since there is no $z$ in the equation, I can't solve for it and use Plot3D. Or can I just put the ...
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I'm new to Mathematica and I need to ask how to graph a sphere, cylinder, etc.. using cartesian equations.
For example in sphere's case $x^2+y^2+z^2=1$
I tried to use ...
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This question has appeared in various forms online, but I have not yet seen a complete answer, so I am posting it here.
More specifically, suppose I have a function
...
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I tried to ask Mathematica to imitate Andy Warhol, let it convert a Marilyn Monroe's portrait so that it looks like Warhol's world famous pop-art painting. However, the result shown below is far from ...
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Trying to plot with complex quantities seems not to work properly in what I want to accomplish. I would like to know if there is a general rule/way of plotting when you have complex counterparts in ...
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Can you answer these questions?
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I have a display issue using Graphics3D. I would like to simply display an array of similar cuboids, all having the same size, distributed in the y-direction. When I use Graphics3D to display the ...
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I have already wrote the code that solves it for quadratic formula and I'm curious if this is possible to make that function work with any kind of polynomial(higher degrees) and solving roots only ...
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Sorry if I wasn't able to find an existing answer!
I'm trying out Mathematica, and was running through some sample problems at night. My roommate is sleeping, and my computer fan can get decently loud....
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