Matlab

solve system of nonlinear equations with fsolve
Hi, I am running into problem with fsolve this time. The exit code is mostly 2 with a few exceptions, which gives an exit code of 3. I tried the trust-region-reflective algorithm and it didn’t help. I also tried the levenberg-marquardt algorithm and about half of the time the root converges but the other ha... 14 Jul 2010 15:25

Copy formatted Excel lines from Matlab prompt
I need to get Matlab to issue commands to Excel that will copy a range of lines containing both formatted text and formatted numerical values to another region of the spreadsheet. So far I have : excel = actxserver('excel.application'); wkbk = excel.Workbooks.Open(case_spreadsheet); wksheet = wkbk.Worksheets.Item... 14 Jul 2010 15:25

uicontrol callback
i want to make GUI using uicontrol that adds , subtracts , multiplies , divides two numbers , but it give me ??? The class "handles" is undefined. Perhaps Java is not running. Error in ==> process>pushbutton_callback at 34 first_number=str2double(get(handles.first_number_tag,'string')); ??? Error while ev... 14 Jul 2010 17:37

Image processing/selection help
Hi, I am working with a spatial frequency plot and I am trying to isolate the high frequency portion of the picture. My code so far draws a square around the brightest point on the right half of the picture which is how I get the center of the high frequency component: U=fftshift(fft2(objh)); %Fourier ... 14 Jul 2010 13:11

Flux Integral: Numerical Integration of Vector Field through an interpolated Surface
Hello, I am trying to calculate the magnetic flux though a surface. I have interpolated a curve through 4 data points using cscvn plot is here: http://imgur.com/qqGxh.png The black filled points on this plot is data. The blue curve is from cscvn. I then returned this curve fit as an array of points, whic... 14 Jul 2010 13:11

need help in bulk image input to uigetfile()
Hello, I am using uigetfile() method to take in images as input and multiselect was on. But while selecting the images,if the number of images is more than 65 an error was popped up and only one image was read. I have to select images in the range 400-1000(or more).Will it be possible to select all images(huge... 14 Jul 2010 14:18

Numerical Inverse Laplace Transform by Gaussian Quadrature
Hello Everyone, I have used the <invlap.m> to get the inverse laplace transform of the function. The function I am using is very complicated and I did not get answer by this function. The expression is very complicated and I need to get the inverse laplace and inverse fourier of it. I am doing the inverse fourier by us... 14 Jul 2010 13:11

resizing plots
Can someone please help? I have modified the code a bit: f = figure('Position', [0 0 1200 400]); t1 = uitable('Parent', f, 'Position', [0 200 632 166]); t2 = uitable('Parent', f, 'Position', [0 0 632 166]); set(t1, 'Data', rand(8)); for i=1:20; set(t2, 'Data', rand(8)); h = subplot(1,2,2); plot... 14 Jul 2010 13:11

magnitude shift (ifft)
Hi all, i want to calculate the ifft of a transformed discrete time series. Since i only want to use the most important (largest) frequencies to calculate the inverse, I cannot use the function ifft. in my approximation code is, however, a magnitude shift - and i just cannot figure out how to fix it. Thanx for ur... 14 Jul 2010 20:55

Multiple Legends in GUI Axes
Hello! I posted earlier about getting multiple legends. I cleaned up my code a little bit, and am starting to understand my error (but still haven't solved my problem). Again, my issue is trying to generate multiple legends for the same plot in a GUI. I collected data during a test from multiple data channels over a... 14 Jul 2010 12:04