Matlab

Schwarz Christoffel Help
Hi, I looked into the Schwarz Christoffel toolbox in matlab. First, I want to make sure I have a clear conceptual understanding of SC. The problem I'm trying to solve is: given a polygon (know its vertices), find a map to the unit circle. First, can you let me know if this can be done using SC in matlab. If so, ... 29 Apr 2010 23:40

Zeros of a Function
I am required to write a function to find the zeros of a function, fx=x^3-5x^2+3x+2, by making a simple search algorithm that goes back and forth decreasing its step size to find the zeros. Does anyone have any advice on how to do this? Here is my code so far, just ignore the if statements I will explain them after. ... 30 Apr 2010 10:35

memory restriction?
I'm getting a "timeout" failure, even though my program runs on my laptop in about 60 seconds. I suspect the real reason is a memory problem. I am creating large matrices that require several GB of memory. What is the memory limit for running the programs? ... 6 May 2010 09:38

Supervised machine learning
Hi guys, I have a pattern recognition problem that I want to solve. Basically, I have data in the form of (of course simplified) A=[1:10]; B=[10:20]. There are a lot of A's and B's, i.e for each A, there is a corresponding B. There exist a relationship between each pair of A and B. What I want is to use the data p... 29 Apr 2010 21:28

help! return value from input on plot
This seems like it should be easy to do, but I can't find info on how to do it anywhere. I am plotting a few points then using basic fitting to fit a linear line to it. What I want to do is input a value for X, and have it return the value for Y on the line. EX: x=[0 123] y=[0 1.08455] plot(x,y) Then I use b... 29 Apr 2010 22:34

photomosaic
Hi guys, i never use matlab and i need to programming a photomosaic..take an image and divided in too many tiles..this tiles must match with the more similar (based on features like color, texture,etc) images of my database..i need your help and recommend! thanks to all! D. ... 8 May 2010 12:18

Return digits of a number as a list
Hi All, I'm wondering if there is a way to return the digits of a number (up to a certain length) as a list. For example: 3.14159 -> [3, 1, 4, 1, 5, 9] 10214.245 -> [1, 0, 2, 1, 4, 2, 4, 5] Mathematica has a function called RealDigits which does exactly this, so I'm wondering if there's some nice w... 29 Apr 2010 22:34

anovan with random effects and continuous predictors
I am trying to fit something like a linear mixed model with a Gaussian response variable, a single random grouping factor (i.e., experiment participant) and 10 continuous predictors. I want to infer whether the continuous predictors have an effect in the population from which the 30 participants were sampled. So, one m... 3 May 2010 15:21

HELP!!!Resize axes according to the image size!!!
Hi mates! I´m acquiring images with my webcam and I´m displayng them in a GUI. The images are being displayed in an axis as I lerned with you ;) . Now I´ve to crop the image. Imagine that the original image has 100x100 px (this way the axis will have the same width and height as the image to avoid distortions) , a... 29 Apr 2010 20:21

White Gaussian Noise
I want to add white Gaussian noise of four intensities (i.e. 1%, 2%, 5% and 10% noise to signal ratio) to impact force signals and the acceleration response time histories. Can anyone give me a help? ... 30 Apr 2010 07:17