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asecant (15) 9 Articles, 6 Replies, 15 Points
Stats Updating... 12/5/2013 3:18:50 AM

Since 4/5/2012 6:53:51 AM, asecant has written 9 articles and participated in 6 conversations.
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asecant

asecant's articles:
 Items(9) /1 ? cal the length and area of contours 4 21 (5/18/2013 10:36:24 AM) comp.soft-sys.matlabHi: One can use contour() to plot contours. But how does one calculate the length and area of a contour? Thanks, ...Cheng ? why cannot get LS soln with mini norm 1 151 (6/14/2010 8:19:42 AM) comp.soft-sys.matlabHi: I tried the following algorithm to see if I can get min norm LS soln for solving min f, f = 0.5*norm( A*x-b ), A is m-by-n and m < n. But the algorithm did not converge to the min norm LS so...Cheng ? plotting a p-ball 5 170 (4/10/2010 11:09:21 PM) comp.soft-sys.matlabHi: Are there existing mfile or do anyone know how can one plot the region of a p-ball? P-ball comes from the definition of p-norm below. norm(x, p) = ( sum( abs(x(i))^p, i = 1 to N ) )^(1/p) e.g...Cheng ? process mesh file 0 46 (8/19/2009 6:14:41 PM) comp.soft-sys.matlabHi: Matlab is good in numerical computations, and there is a software called Amira that is good in generating FE mesh. But Amira has its own file format. Suppose we have mesh file generated by someone else ...Cheng ? show FE mesh from STL file 0 38 (8/12/2009 4:25:15 AM) comp.soft-sys.matlabHi: How can one use Matlab to retrieve finite element mesh stored in STL file and then display those triangular or tetrahedron mesh? Thanks, ...Cheng ? read file consisting of text and numbers in little endian 11 42 (7/8/2009 12:48:59 PM) comp.soft-sys.matlabHi: I have a file named image.123. I do not know what format this file belongs to, thus I opened it using Wordpad.exe. It content is as follows. My goal is to use Matlab to get the numbers in this line. B...Cheng ? remove dicom info 6 77 (7/6/2009 5:55:50 PM) comp.soft-sys.matlabHi: I am trying to remove some info contained in dicom file. I tried the following script but then some connectivity between images are destroyed. For example, originally when I import that set of dicom image...Cheng ? plot colored circles in 2d 1 39 (5/5/2009 6:55:33 PM) comp.soft-sys.matlabHi: I have the following datset: Q.x, Q.y, and Q.strength x and y are x and y coordinates, and strength is some value. I want to visualize this dataset as some small circle spreading on the xy-plan...Cheng outer product of higher dim 3 42 (8/17/2008 8:13:03 PM) comp.soft-sys.matlabGiven a1 = rand(3,1) and a2 = rand(2,1), we construct a 2D array by A2 = a1*a2'. But how about constructing an array of higher dimension? For example, A3(:,:,:) = ? given a1 = rand(3,1), a2 = rand(2,1) and ...Cheng

asecant's replies:
 Items(2) /1 ? read file consisting of text and numbers in little endian 11 42 (7/8/2009 12:48:59 PM) comp.soft-sys.matlabHi: I have a file named image.123. I do not know what format this file belongs to, thus I opened it using Wordpad.exe. It content is as follows. My goal is to use Matlab to get the numbers in this line. B...asecant (15) ? cal the length and area of contours 4 21 (5/18/2013 10:36:24 AM) comp.soft-sys.matlabHi: One can use contour() to plot contours. But how does one calculate the length and area of a contour? Thanks, ...asecant (15)