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Pinpress


University of Pennsylvania

2012 年からアクティブ

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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...

約10年 前 | 0 件の回答 | 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...

10年以上 前 | 0 件の回答 | 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 ...

11年以上 前 | 1 件の回答 | 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...

11年以上 前 | 4 件の回答 | 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...

11年以上 前 | 1 件の回答 | 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...

11年以上 前 | 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...

11年以上 前 | 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...

11年以上 前 | 10 件の回答 | 0

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質問


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...

12年弱 前 | 5 件の回答 | 0

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質問


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 ...

12年弱 前 | 0 件の回答 | 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. ...

12年弱 前 | 0 件の回答 | 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....

約12年 前 | 2

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

約12年 前 | 0

質問


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...

約12年 前 | 3 件の回答 | 2

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