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Difference between revisions of "User:Boris Tsirelson/sandbox1"

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<center><asy>
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<ref> [http://hea-www.harvard.edu/AstroStat http://hea-www.harvard.edu/AstroStat]; <nowiki> http://www.incagroup.org </nowiki>; <nowiki> http://astrostatistics.psu.edu </nowiki> </ref>
 +
 
 +
====Notes====
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<references />
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 +
-------------------------------------------
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 +
 
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{|
 +
| A || B || C
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|-
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| X || Y || Z
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|}
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 +
 
 +
 
 +
-----------------------------------------
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-----------------------------------------
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 +
$\newcommand*{\longhookrightarrow}{\lhook\joinrel\relbar\joinrel\rightarrow}$
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 +
<asy>
 
size(100,100);
 
size(100,100);
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label(scale(1.7)*'$T(\\Sigma)\hookrightarrow T(\\Sigma,X)$',(0,0));
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</asy>
 +
 +
<asy>
 +
size(220,220);
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 +
import math;
  
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// recursive procedure, draws the fractal within the rectangle [x0,x1]×[y0,y1]
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int kmax=40;
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void f(real x0, real x1, real y0, real y1, int n) {
+
 
−
   if (n!=0) {
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guide g;
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    real dx = (x1-x0)/3;
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for (int k=-kmax; k<=kmax; ++k) {
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    real dy = (y1-y0)/2;
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   real phi = 0.2*k*pi;
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    draw( (x0+dx,y0+dy)--(x0+2*dx,y0+dy), defaultpen+1 );
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  real rho = 1;
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    f(x0,x0+dx,y0,y0+dy,n-1);
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  if (k!=0) {
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     f(x0+2*dx,x1,y0+dy,y1,n-1);
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     rho = sin(phi)/phi;
 
   }
 
   }
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  pair z=rho*expi(phi);
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  g=g..z;
 
}
 
}
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draw (g);
 +
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defaultpen(0.75);
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draw ( (0,0)--(1.3,0), dotted, Arrow(SimpleHead,5) );
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dot ( (1,0) );
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label ( "$a$", (1,0), NE );
  
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f(0,1,0,1,9);
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</asy>
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draw( (0,0)--(1,0), arrow=Arrow );
 
−
draw( (0,0)--(0,1), arrow=Arrow );
 
−
</asy></center>
 

Latest revision as of 07:12, 13 March 2016

[1]

Notes

  1. ↑ http://hea-www.harvard.edu/AstroStat; http://www.incagroup.org ; http://astrostatistics.psu.edu


A B C
X Y Z


$\newcommand*{\longhookrightarrow}{\lhook\joinrel\relbar\joinrel\rightarrow}$

How to Cite This Entry:
Boris Tsirelson/sandbox1. Encyclopedia of Mathematics. URL: http://encyclopediaofmath.org/index.php?title=Boris_Tsirelson/sandbox1&oldid=29432
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