Matlab

matlab tool to evaluate mesh quality?
Hi, Please check this kind of toolbox of geometry. It is very useful, a lot of files .m to solve a great variety of thing in geometry, including mesh generation, surfaces, volumes etc. http://people.sc.fsu.edu/~jburkardt/m_src/geometry/geometry.html In particular some codes to compute tetrahedrosn quality. ... 12 Jul 2010 10:41

euclidian distance
i need to compute the euclidian distance for some images. i have figure out the code to compute the euclidian distance for two images. bt now, my task was to compute the average and maximum euclidian distance between the images in the same categories. i hav 9 categories in total, and each categories consist of 100... 9 Jul 2010 10:32

Matrix transformation
Hi, I have a lot of data in a matrix with only one row, i would like to represent the same matrix in several rows decreasing the number of columns Thank you ... 9 Jul 2010 10:32

Setting A Minimum Figure Size
Hello, I am looking to create a figure which can be resized by the user. However, I want there to be a lower limit to this capability. I tried using a method similar to the one below and it seems to work a majority of the time. If the user is resizing from the bottom or from the right, the program quickly resets ... 9 Jul 2010 09:25

Crop an Object from multiple Images (shows error in code)
I am using the following code to crop an object from an image: The image is: http://www.mediafire.com/?znwngzjydn3 I = imread('filename.tif'); [rows columns numberOfColorBands] = size(I); if numberOfColorBands > 1 grayImage = rgb2gray(I); end binaryImage = grayImage == 255; horizontal = any(bin... 9 Jul 2010 13:52

how to ignore some sampling points
Hi all. I have a box with a longitudinal dimension of 10 meters. In the bottom of the box I have equilateral triangles (all sides are equal) (the triangles starts at x= 3 meters and end at x=7 meters).The configuration of the bottom is periodic:the first triangle starts at x=3 and has a base length of l, then there... 9 Jul 2010 09:25

Making a mesh from scattered data
I am trying to create an evenly spaced mesh of Lat, Long and then an observation at each point. I have 123 points that are scattered in an excel document. What I am trying to do is create a 123x123 mesh of these points. So each point has an observation but I the mesh I want to create is evenly spaced coordinates wit... 9 Jul 2010 09:25

Finding a root
Hey guys, I'm new to Matlab and have a (little) question. I want to find the root of this function: 0.247=-sum(pvdef)*0.05+sum(pvprot) pvdef and pvprot depend on rho. r=0.02 ; R=0.4 ; A=0.001 ; B=0.03 ; x= -norminv(A/(1-R)); z= -norminv(B/(1-R)); k=1:20 ; stetverzinsung=exp(-r*(k/4)); c=norminv(1-ex... 9 Jul 2010 08:19

Finding a root
Hey guys, I'm new to Matlab and have a (little) question. I want to find the root of this function: 0.247=-sum(pvdef)*0.05+sum(pvprot) pvdef and pvprot depend on rho. r=0.02 ; R=0.4 ; A=0.001 ; B=0.03 ; x= -norminv(A/(1-R)); z= -norminv(B/(1-R)); k=1:20 ; stetverzinsung=exp(-r*(k/4)); c=norminv(1-ex... 10 Jul 2010 05:10

Symbolic toolbox solution
Hi All, How can we get analytical expressions of "kappa" and "gamma" from the below two equations by using Symbolic toolbox? Any kind of help is appreciated. Regards Serdar 1.st equation Ip0*gamma+alpha_p*Ip0+gb/K*Ip0*Is0*exp(kappa*L) 2.nd equation -Is0*kappa*exp(-kappa*z)-alpha_s*Is0*e... 9 Jul 2010 17:12