Top new questions this week:
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Suppose I have a list like: list1 = {{f[x], Sin[x]}, {f'[x]}, {f”[x]}}; list2 = {{f[x]}, {Cos[x], f”[x]}}; I want to pick these lists and convert them to: …
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Is this a bug? The region and polygon don’t match. How can I fix this? I would prefer to continue using “Implicit”, as it is related to one of my previous threads here. …
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I have a list of equations that were solved for different values of another parameter and stored in a Table and has the form: {a==0, a==1, a==2, a==3} and so on. I …
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Consider the following figure in .pdf format. Its .png version is below: I would like to digitize it, i.e., e.g., extract the data for the brown curve $a\to KK\pi$. How can I do this, using the fact …
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I’ve written a function, which I intended to Map over lists of some 8,000 element pairs. I created the “toy” code below to illustrate my problem. …
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This post is related to one of my previous posts. My goal is to keep only the lines that fall on the boundary (2, 8) or inside the region …
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In this toy example, lis = {C[1]*3, C[2]*9, 123}; I want to change, using Cases, the pattern C[x__]*y_ to …
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Greatest hits from previous weeks:
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In the plot below I would like to add two vertical lines at $x = \frac{\pi}{15} \pm \frac{1}{20}$. How can I do that? …
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Here is a start. MapIndexed[Text[Reverse[First[RealDigits[Pi,10,252]]][[Tr@#2]],#]&, Table[{t Cos[t],t Sin[t]},{t,0,16Pi,0.2}]]//Graphics
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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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For my Calc III class, I need to find $T(t), N(t)$, and $B(t)$ for $t=1, 2$, and $-1$, given $r(t)=\{t,t^2,t^3\}$. I’ve got Mathematica, but I’ve never used it before and I’m not sure how to coerce …
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In this example, how can I put the legend inside the graph? Currently, when I save the graph, only the graph is saved, not the legend. …
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blog.stephenwolfram.com/2019/05/launching-today-free-wolfram-engine-for-developers/ www.wolfram.com/engine/ The Free Wolfram Engine for Developers is available for pre-production …
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Solve and Reduce both can be used for solving equations. Just by working with them, I know there are some differences between …
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Can you answer these questions?
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I’m running Wolfram Desktop version 13.2.1, and after downloading Visual Studio, Nvidia Toolkit version 12.1 and 11.2, and verifying that …
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I have a very useful bash script for pre-processing a Mathematica notebook before committing it to my local git repo. It works fine under Windows/Cygwin and under Linux. I like to keep one master copy …
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I want to take a list of graphics primitives and draw them on top of another set of graphics primitives, using a child coordinate system. To do this, I’m using a …
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