User:Aks

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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