Matlab

Point on Line Segment in 3D ? Fast Algorithm
"Roger Stafford" <ellieandrogerxyzzy(a)mindspring.com.invalid> wrote in message <g1ogmd$9md$1(a)fred.mathworks.com>... "Jens Hilwig" <jhilwig(a)gmx.de> wrote in message <6a9sqqF35gdblU1(a)mid.uni-berlin.de>... Hello, Im looking for a fast algorithm to determine if a point (3D) is inside a line segm... 30 Jun 2010 16:28

problem with dsolve
Hi, I'm trying to solve a system of ordinary differential equations in symbolic form. i used following command but it returned may error. S=dsolve('Du3 =u4','Du4 =K*b1-(K(x1*t-u3-L)/m)-C(x1-u4)-a1' ,'Du2=K(b1-b2)/C+K(2*u3-u2-x1+L)/C-C(x1-2u4)-(a1-a2)/C') i want to solve for u2,u3 and u4 and rest are symboli... 30 Jun 2010 09:45

Length array
I have an array that is composed ot time data that I am reading into from excel and it looks like this: 12:34:20 12:34:40 12:34:60 etc. When it reads it into matlab it displays it as a decimal value: .7342, .7345, etc... What I want to do is take the array that matlab has read in (call it A) and create an array ... 30 Jun 2010 09:45

resolution of input and output
Hi; How to take care about resolution for input and output during model development ranges and resolution is given like: input: Name range resolution dnClutch -2000 to 2000 0.1 output: Name range resolution ... 30 Jun 2010 09:45

Sorting
i had generte a graph G(V,E),where V is vertices and E is Edges. now i want to sort all the edges in acesding order of weight. G= 1.0e+007 * (10,1) 1.2119 (11,1) 1.0673 (13,1) 0.0182 (22,1) 2.0078 (31,1) 3.0406 (53,1) 0.8702 (54,1) 1.3758 (55... 30 Jun 2010 13:06

3D Tumor Display
Hi all, I have a matrix of a stack of images of a tumor, and I would like to come up with a way to create a rough 3D image of that tumor by taking one ROI in both the X and Y directions and three in the Z direction, for a total of five ROIs that together create a sort of blimp-like thing and interpolate the missing ... 30 Jun 2010 10:52

Set path won't save
When I'm setting a path in MatLab and try to save my changes so I don't have to set it everytime I get the error message: | MATLAB cannot save changes to the path. The path file, pathdef.m, might be read-only or might be in a directory for which you do not have write access. You can save pathdef.m to a differen... 6 Aug 2010 18:11

GUI and external functions + popupmenu value problem
Hi, I have written a function that creates me data points according to user-given parameters and I'd like to develop a gui for it. I have 8 edit text fields and one popupmenu where to specify the data parameters. Then I have one push button ('Create!') and two figures. The edit text-fields should work fine, but I'm ... 1 Jul 2010 06:40

how to create a video from frames?!
"Mo " <m007mobond(a)hotmail.com> wrote in message <htgt2q$psf$1(a)fred.mathworks.com>... hi everyone, i was working on a project where i want to take some images and make video out of them. I have 5 images and i want to combine them into a video '.avi' file...i've tried the following code but it brings up an erro... 30 Jun 2010 08:39

Eye Tracking
I have this code and I want to extract the eyes' area in the detected face area, please could you help me? Note that this code is based on the methodolgy of the paper that called face detection in color images (2001) , I have applied section 2.2.1 and 2.2.2 but I am still strugling in applying section 2.2.3. you can... 30 Jun 2010 07:34