photo

Pinpress


University of Pennsylvania

Active since 2012

Followers: 0   Following: 0

Message

Statistics

  • First Answer

View badges

Feeds

View by

Question


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...

10 years ago | 0 answers | 0

0

answers

Question


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 years ago | 0 answers | 0

0

answers

Question


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 years ago | 1 answer | 0

1

answer

Question


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...

12 years ago | 4 answers | 0

4

answers

Question


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...

12 years ago | 1 answer | 0

1

answer

Answered
"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...

12 years ago | 0

Answered
"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...

12 years ago | 0

Question


"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...

12 years ago | 10 answers | 0

10

answers

Question


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 years ago | 5 answers | 0

5

answers

Question


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 years ago | 0 answers | 0

0

answers

Question


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 years ago | 0 answers | 0

0

answers

Answered
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....

12 years ago | 2

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

12 years ago | 0

Question


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...

12 years ago | 3 answers | 2

3

answers