Matlab

plot a 3d circle surface
I am trying to figure out a way to plot a 3d surface in matlab. There are lots of data x and y,z is indepentent of x and y. I only want to plot a circle surface with the conditions: x^2+y^2<=25 but I awalys get a rectangular surface. I tried using loop to delete the data x^2+y^2>25, but the resuts looks ugl... 23 Feb 2010 15:51

plot a 3d circle surface
I am trying to figure out a way to plot a 3d surface in matlab. There are lots of data x and y,z is indepentent of x and y. I only want to plot a circle surface with the conditions: x^2+y^2<=25 but I awalys get a rectangular surface. I tried using loop to delete the data x^2+y^2>25, but the resuts looks ugly. ... 28 Feb 2010 14:28

Path Dependant Operations
In updating/deploying an older program, I have come across this statement: switch unit.color case {4,5} addpath(genpath('mfiles\blue')); %loads blue case 6 addpath(genpath('mfiles\green')); %loads green otherwise addpath(genpath('libr... 23 Feb 2010 14:42

Molecular simulation
I am looking for MATLAB code for molecular simulation including graphical output that I can use in class and with a textbook I am writing. I want to use simple spheres (hard spheres, Lennard-Jones and square-well potentials) in both MC and MD. I am willing to modify existing programs to meet my needs, but I do not feel... 28 Feb 2010 20:03

Get Quality Factor of JPEG Image...
Does anyone know of a quick and easy way to use MATLAB to find the Quality Factor of a JPEG compressed image? Thanks. ... 23 Feb 2010 14:42

histogram thresholding for face detection
i'm using histogram thresholding...right now i can detect skin quite nicely i also use condition of ration between witdh over height for possible face candidate.. so next thing i want to confirm that region by finding eyes or mouth or something to confirm the face.. so any suggestion... pls include coding...tq ... 23 Feb 2010 14:42

template matching face detection
how to built the best face template??? i also got headache with the neck so my face template not work out nicely.. any suggestion or better way to do template matching pls include some coding if possible...tq ... 23 Feb 2010 14:42

Multiple help windows
I would like to open more than one help windows on Matlab. I can't seem to do it using the native help program, so I decided to using multiple browser tabs/windows and browse the help at the mathworks site. Unfortunately, http://www.mathworks.com/access/helpdesk/help/helpdesk.html contains a more advanced version... 23 Feb 2010 13:33

Matlab complied dll and LabVIEW
Hi, Thanks for the link, but when I follow the commands (using the downloaded files and the build script) the generated .exe just crashes. I'm using Matlab 7.8.0 and Compiler 4.10. The line of code: mbuild -v level3.c, generates two error warnings: warning level3.c: 35 assignment of pointer to double to point... 23 Feb 2010 14:42

Variable in Input Prompt
I would like to display a changing variable in an input prompt and I'm having trouble doing that. I'm doing a simple analysis of tractive effort vs. velocity of an electric vehicle and I would like to have a user input labeling the number of gears. Following that I want to make a vector of gear ratios with a user inp... 23 Feb 2010 13:33