# All Questions

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### Freeing memory after file Import

This problem that I would like to resolve is how to free memory used Import a file when the file is no longer in use. I have a project in which I need to read and analyze a large number of .json ...
17 views

### How can I fix this hole?

What I did and what I got: What I want: no hole i.e. a closed end cap. I guess the hole is related to the "invalid comparison" but this alert is undocumented AFAICS. Note: I am using WPC only.
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### How can I avoid these defects in ContourPlot3D output on WPC?

Evidently not by increasing PlotPoints: I have read https://reference.wolfram.com/language/tutorial/ArbitraryPrecisionNumbers.html "If you give higher‐precision input, the Wolfram Language will ...
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### Rotate with Euler angles in Graphics3D

I need to rotate with the Euler angle sequence: Yaw by $\psi$ around $z$ Pitch by $\theta$ around $y'$ Roll by $\phi$ around $x''$ I know of Rotate[] in ...
58 views

### How to clear everything in Mathematica?

I am a new user. According to a documentation, Clear["context*"] clears all symbols in a particular context. I want to clear everything (functions, variables, etc..) After I use the above command, ...
61 views

### Saving file as .m causes it to save as comments

I am attempting to create a Package and so am saving a notebook with the code from Mathematica's example ...
30 views

### Dynamic programming: Fibonacci generator

I have the following piece of code: ...
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### How to inscribe a circular helix in a cylinder?

I need a way to plot a circular helix in a cylinder on Wolfram Mathematica. Someone can help me?
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### How to get the desired (equivalent) answer from Integrate?

This is the integrand: 1/beta/(2*z)/(1 - beta) // TraditionalForm Integrating with respect to z, gives ...
119 views

### Displaying a list of percentage values according to their classification

I have a list of percentages as follows: percent = {21.15, 42.3, 57.68, 73.06, 84.6, 90.37, 96.14, 99.99, 99.99, 99.99, 99.99} I want to classify these ...
39 views

### “Part specification is longer than depth” warning in Position function [duplicate]

I'm working on a project which analyzes financial data. I download the price and dividend information for the SPY ETF which tracks the S&P 500: ...
69 views

### Program to demonstrate rotation according to quaternion values

On the Wolfram|Alpha website, I type quaternion(1,1,1,1) into the search field. Wolfram|Alpha shows a 3D transformation of the quaternion values representing the orientation of an object. I have 9 ...
57 views

### Mathematica requirements management [on hold]

Is there a way to use Mathematica notebook as a requirements document as it's possible in IBM DOORS ? ...
96 views

### How to find points along the inner and outer edge of a ring along a specific direction

I have a set of random numbers distributed on a annular disk. I want to find points on the inner and outer edge along a particular angle. One possibility is to use ...