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I'm trying to set up code that basically asks the user to input the values of a matrix with a certain key size. I want them to first enter the keysize and then ask for all of the entries necessary to ...
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I am trying to download data from NOAA and I can't figure out how to construct a query to do it. This URL points to a page that contains data for tides at six minute intervals between Jan 01 2021 and ...
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As a beginner with Mathematica, I apologize if this question is too basic. I would like to show introductory students that a complex number can be represented in several different coordinate systems ...
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Version: "14.3.0 for Linux x86 (64-bit) (July 8, 2025)" The code listed below using the data following it produces the result shown in the image. I want the node labels positioned directly ...
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I have been following the aforementioned course and it has been great. I am currently stuck on question 36.4: "Publish a form on the web that takes the topic of a Wikipedia page and gives a word ...
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I have a code to plot the steady state frequency response curve (provided by @ Michael E2), How can I plot the steady state phase response with the help of this code same as shown in the figure: . <...
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A simple question but the answer is elusive... well, for me anyway! Given a metric space defined as d((x1,x2),(y1,y2)) == 4|y1 - x1| + d0(x2,y2), how can I plot ...
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In Solved3DConstrainedIntegration the constrained three-dimensional (Hilbert-Schmidt-metric-based HSmetric) integration problem for the absolute separability probability of the two-qubit (quantum bit)...
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I would like to solve the following system of differential equations numerically for two one-dimensional functions $R(x)$ and $\phi(x)$: \begin{eqnarray} c_1 \left(R''(x) - (\phi'(x))^2 R(x) \right) - ...
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My reading of the documentation for DateList and DateString lead me to believe that both functions use ...
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I understand BlankSequence in other contexts, but not this one __h means a pattern of one or more things each of which have head ...
lericr's user avatar
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I encountered a weird problem when trying to study a few properties of eigenvectors of matrices sampled from the Gaussian symplectic ensemble (GSE). I have encountered this while trying to understand ...
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I want to define a function f[x] and then be able to integrate numerically as a vector - not component by component. The following is my failed attempt: ...
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I would like to generate a diagram in Mathematica showing how the mapping \begin{equation} w = z^2 \end{equation} transforms a rectangular grid in the complex $z$-plane into a curved grid in the $w$-...
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EDIT: This question has been heavily edited to only show the one question I have without confusion. I am simulating points $X_j$ and getting outputs $Y_j=f(X_j)+e_j$ where $e_j\sim N(0,3)$ where $f$ ...
lericr's user avatar
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