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Pinpress


University of Pennsylvania

Aktiv seit 2012

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R2014a slower than R2013a
On the same computer, when running imdilate, R2014a takes 4.1 sec while it was 3.7 sec on R2013a. this is consistent after multi...

etwa 10 Jahre vor | 0 Antworten | 0

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Is this called "conjugate rotational axis"?
Hi, I have a left-right symmetric object rotating about an axis. Now if I choose a different rotational axis, the object will...

mehr als 10 Jahre vor | 0 Antworten | 0

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mesh display with element values
Hi, If I use patch to display a mesh, I can color code the mesh surface by specifying the nodal values. However, from finite ...

mehr als 11 Jahre vor | 1 Antwort | 0

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Eqivalent rigid body rotation from translation and rotation
Hi, In 2D, I can see that any combinations of translation plus rotation about the origin can be transformed into a pure rotat...

mehr als 11 Jahre vor | 4 Antworten | 0

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Matlab inversion and optimization
I am hoping to get an inversion scheme to work in a high dimension. To make it simple, let me illustrate it in a 2D case. Supp...

mehr als 11 Jahre vor | 1 Antwort | 0

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"mesh" or "surf" display problem on Windows 7
Thanks. The graphics card driver is up-to-date. Tried both software and hardware opengl, same effect and no cure. Also tried all...

mehr als 11 Jahre vor | 0

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"mesh" or "surf" display problem on Windows 7
OK -- some more discovery here. I think the problem is with the "opengl" renderer. If I change to "zbuffer", the problem is gone...

mehr als 11 Jahre vor | 0

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"mesh" or "surf" display problem on Windows 7
Hi, This is strange and I scratched my head but could't figure out why. Very simple matlab code: [x,y] = meshgrid(1:10,1...

mehr als 11 Jahre vor | 10 Antworten | 0

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problem with repeating index values
Hi, Suppose a = [0 0 0 0]; if I do: a([1 1 2 2 2])= a([1 1 2 2 2])+ 1; I get: [1 1 0 0]; However, what I reall...

fast 12 Jahre vor | 5 Antworten | 0

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How to do this efficiently?
Hi, I have a number of (>30k) 3D curved lines stored in a cell. They are of different lengths. What would be the best way to ...

fast 12 Jahre vor | 0 Antworten | 0

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how to find maximum shear/normal strain
Hi, This is a general mechanics question. Suppose the 3D strain state at a point is known, so is the coordinate system, XYZ. ...

fast 12 Jahre vor | 0 Antworten | 0

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inpolygon equivalent function in 3D?
Thanks for the tip. However, I don't think that's a good solution. I believe it tries to generate a convex hull using delaunayn....

etwa 12 Jahre vor | 2

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loading 3D big array
im(:,:,100)?? or squeeze(im(:, 1000, :)) ??

etwa 12 Jahre vor | 0

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inpolygon equivalent function in 3D?
Hi, I need to find a way to determine if a large number of points are inside a closed polygon expressed by either a triangula...

etwa 12 Jahre vor | 3 Antworten | 2

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