XerxesZorgon

## pi_license.gp
/*
The PI License

Finds a four digit prime number n such that n is
	- Balanced: A prime equidistant from the previous and subsequent prime numbers.
	- Odious: A number is odious if the binary representation of the number as an odd number of 1's, and is evil if the number of 1's is even.
	- Happy: Add the squares of the digits to get a new number. Continue the process and if you ever get to $1$, the original number is happy.
	- Apocalyptic: If 2^n contains the sequence 666, then n is apocalyptic.

Author: John Peach

## shock_tube.geo
// Gmsh project created on Mon Jun 17, 2024
SetFactory("OpenCASCADE");

// Define points
L = 0.5;    // Tube length
H = 0.05;   // Tube width
N = 10;     // Number of rectangles along length of the tube
Point(1) = {0, 0, 0, 1.0};
Point(2) = {L, 0, 0, 1.0};
Point(3) = {L, H, 0, 1.0};

## CSG_example.scad
// Shape parameters
sphereRadius = 0.65;
cylinderRadius = 0.3;
cylinderHeight = 1.1;

// Top level difference operation
difference(){

    // Intersection of cube and sphere
    intersection(){

## goldfish-conjecture.ipynb

      
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                XerxesZorgon
                / goldfish-conjecture.ipynb
            
            
              Created
              June 5, 2024 01:31
            
              
                Calculations for the Student's t-test using Python in a JupyterLab notebook
              
          
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## stefan-boltzmann-revisited.ipynb

      
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                XerxesZorgon
                / stefan-boltzmann-revisited.ipynb
            
            
              Created
              May 28, 2024 19:17
            
              
                Earth temperature from the Stefan-Boltzmann Law
              
          
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## Fibonacci.html
<!DOCTYPE html>
<html>
<head>
<meta name=viewport content="width=device-width,initial-scale=1">
<meta charset="utf-8"/>
<script src="https://cdn.geogebra.org/apps/deployggb.js"></script>

</head>
<body>
<div id="ggbApplet"></div>

## Bretscher_sequence.ipynb

      
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                / Bretscher_sequence.ipynb
            
            
              Created
              February 2, 2024 19:24
            
              
                Spectral decomposition of 2x2 matrix defining recursive sequence, in Mathematica
              
          
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## Problem2024.ipynb

      
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              February 2, 2024 19:23
            
              
                Spectral decomposition of 2x2 matrix defining recursive sequence, in Julia
              
          
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## Attack rate.csv

          
            x
            logx
            Hr
            Fit

            
              0.000222026
              -3.653596397
              0.356389604
              -0.125

            
              0.000279034
              -3.55434296
              0.356389604
              -0.125

            
              0.00035068
              -3.455089522
              0.37470064
              0

            
              0.000440721
              -3.355836085
              0.37470064
              0

            
              0.000553882
              -3.256582648
              0.502877892
              0.125

            
              0.000696099
              -3.157329211
              0.557811
              0.125

            
              0.000874831
              -3.058075774
              0.637158823
              0.25

            
              0.001099456
              -2.958822336
              0.692091931
              0.375

            
              0.001381755
              -2.859568899
              0.917928042
              0.5

## Normalized speaking coughing.csv

          
            Diam
            Speaking
            Coughing
            Ratio
            Counts

            
              3
              0.052829091
              0.05826629
              0.906683629
              0.05554769

            
              6
              0.207200481
              0.201454534
              1.028522303
              0.204327507

            
              12
              0.311449996
              0.333187718
              0.934758332
              0.322318857

            
              20
              0.159914164
              0.179976297
              0.888529026
              0.169945231

            
              28
              0.096156561
              0.085830027
              1.120313771
              0.090993294

            
              36
              0.047840788
              0.048243113
              0.991660483
              0.04804195

            
              45
              0.023751532
              0.021037346
              1.129017519
              0.022394439

            
              62.5
              0.028075245
              0.026764876
              1.048958533
              0.027420061

            
              87.5
              0.01935919
              0.015309816
              1.264495204
              0.017334503
	/*
	The PI License

	Finds a four digit prime number n such that n is
	- Balanced: A prime equidistant from the previous and subsequent prime numbers.
	- Odious: A number is odious if the binary representation of the number as an odd number of 1's, and is evil if the number of 1's is even.
	- Happy: Add the squares of the digits to get a new number. Continue the process and if you ever get to $1$, the original number is happy.
	- Apocalyptic: If 2^n contains the sequence 666, then n is apocalyptic.

	Author: John Peach
	// Gmsh project created on Mon Jun 17, 2024
	SetFactory("OpenCASCADE");

	// Define points
	L = 0.5; // Tube length
	H = 0.05; // Tube width
	N = 10; // Number of rectangles along length of the tube
	Point(1) = {0, 0, 0, 1.0};
	Point(2) = {L, 0, 0, 1.0};
	Point(3) = {L, H, 0, 1.0};
	// Shape parameters
	sphereRadius = 0.65;
	cylinderRadius = 0.3;
	cylinderHeight = 1.1;

	// Top level difference operation
	difference(){

	// Intersection of cube and sphere
	intersection(){
	<!DOCTYPE html>
	<html>
	<head>
	<meta name=viewport content="width=device-width,initial-scale=1">
	<meta charset="utf-8"/>
	<script src="https://cdn.geogebra.org/apps/deployggb.js"></script>

	</head>
	<body>
	<div id="ggbApplet"></div>
x	logx	Hr	Fit
0.000222026	-3.653596397	0.356389604	-0.125
0.000279034	-3.55434296	0.356389604	-0.125
0.00035068	-3.455089522	0.37470064	0
0.000440721	-3.355836085	0.37470064	0
0.000553882	-3.256582648	0.502877892	0.125
0.000696099	-3.157329211	0.557811	0.125
0.000874831	-3.058075774	0.637158823	0.25
0.001099456	-2.958822336	0.692091931	0.375
0.001381755	-2.859568899	0.917928042	0.5
Diam	Speaking	Coughing	Ratio	Counts
3	0.052829091	0.05826629	0.906683629	0.05554769
6	0.207200481	0.201454534	1.028522303	0.204327507
12	0.311449996	0.333187718	0.934758332	0.322318857
20	0.159914164	0.179976297	0.888529026	0.169945231
28	0.096156561	0.085830027	1.120313771	0.090993294
36	0.047840788	0.048243113	0.991660483	0.04804195
45	0.023751532	0.021037346	1.129017519	0.022394439
62.5	0.028075245	0.026764876	1.048958533	0.027420061
87.5	0.01935919	0.015309816	1.264495204	0.017334503