Difference between revisions of "User:Aks"

From PrattWiki
Jump to navigation Jump to search
Line 12: Line 12:
 
3-D Visualization: Klein Bottle
 
3-D Visualization: Klein Bottle
 
This one is my favorite because it created a cool image and I was able to make out what most of the code was doing.
 
This one is my favorite because it created a cool image and I was able to make out what most of the code was doing.
 +
 +
===Image of Klein Bottle===
 
[[Image:Klein Bottle.jpg|frame|none|alt=alt text]]
 
[[Image:Klein Bottle.jpg|frame|none|alt=alt text]]
  
 
===Code used to generate Klein Bottle===
 
===Code used to generate Klein Bottle===
...  
+
... n = 12;
n = 12;
 
 
a = .2;                        % the diameter of the small tube
 
a = .2;                        % the diameter of the small tube
 
c = .6;                        % the diameter of the bulb
 
c = .6;                        % the diameter of the bulb
Line 27: Line 28:
 
% The handle
 
% The handle
 
len = sqrt(sin(X).^2 + cos(2*X).^2);
 
len = sqrt(sin(X).^2 + cos(2*X).^2);
x1 = c*ones(size(X)).*(cos(X).*sin(X) ...
+
x1 = c*ones(size(X)).*(cos(X).*sin(X)...
     [[File:[[File:Example.jpg]]]]- 0.5*ones(size(X))+a*sin(Z1).*sin(X)./len);
+
     - 0.5*ones(size(X))+a*sin(Z1).*sin(X)./len);
 
y1 = a*c*cos(Z1).*ones(size(X));
 
y1 = a*c*cos(Z1).*ones(size(X));
 
z1 = ones(size(X)).*cos(X) + a*c*sin(Z1).*cos(2*X)./len;
 
z1 = ones(size(X)).*cos(X) + a*c*sin(Z1).*cos(2*X)./len;
Line 49: Line 50:
 
light('Position',[2 -4 5])
 
light('Position',[2 -4 5])
 
light
 
light
hold off
+
hold off ...
...
 

Revision as of 15:18, 22 September 2011

Hello!!

My Engineering Grand Challenge Article

Reverse Engineering the Brain, Sally Adee, IEEE Spectrum, updated June 2008, accessed 21 September 2011 (Reverse Engineering the Brain)

Phonetic Pronunciation of "Andrew Shim"

an-droo shim (not sheem)

My favorite MATLAB demonstration

3-D Visualization: Klein Bottle This one is my favorite because it created a cool image and I was able to make out what most of the code was doing.

Image of Klein Bottle

alt text

Code used to generate Klein Bottle

... n = 12; a = .2; % the diameter of the small tube c = .6; % the diameter of the bulb t1 = pi/4 : pi/n : 5*pi/4; % parameter along the tube t2 = 5*pi/4 : pi/n : 9*pi/4; % angle around the tube u = pi/2 : pi/n : 5*pi/2; [X,Z1] = meshgrid(t1,u); [Y,Z2] = meshgrid(t2,u);

% The handle len = sqrt(sin(X).^2 + cos(2*X).^2); x1 = c*ones(size(X)).*(cos(X).*sin(X)...

   - 0.5*ones(size(X))+a*sin(Z1).*sin(X)./len);

y1 = a*c*cos(Z1).*ones(size(X)); z1 = ones(size(X)).*cos(X) + a*c*sin(Z1).*cos(2*X)./len; handleHndl=surf(x1,y1,z1,X); set(handleHndl,'EdgeColor',[.5 .5 .5]); hold on;

% The bulb r = sin(Y) .* cos(Y) - (a + 1/2) * ones(size(Y)); x2 = c * sin(Z2) .* r; y2 = - c * cos(Z2) .* r; z2 = ones(size(Y)) .* cos(Y); bulbHndl=surf(x2,y2,z2,Y); set(bulbHndl,'EdgeColor',[.5 .5 .5])

colormap(hsv); axis vis3d view(-37,30); axis off light('Position',[2 -4 5]) light hold off ...