Matlab

bug in symbolic toolbox? ln instead of log??
I am trying to use the symbolic toolbox but there seems to be an extremely stupid bug in my version of matlab. I have tried the following line of code: x=sym('x') y=log(x) output: y=ln(x) f=matlabFunction(y) output f=@(x)ln(x) f(3) output: Error unknown function ln. For some reason matlab's symbolic toolbox s... 25 Apr 2010 09:54

Find path of the application on MAC OSX
Hey... I compiled a function that needs the path the application (.exe files in Windows, .app on OS X). For windows the command 'pwd' works perfect, but on MAC it only return the root path '/'. Also ctfroot does not help, only returns the path to the temporary m-files for the MatLab run-time. Any suggestion to fi... 14 Apr 2010 09:53

Unfortunately this didn't work :(
Sorry but what you suggested didn't work. I just want to create a new x-axis or shift the x-axis that is already there. changing the x-tick is not helping.. here is the link for the image, I want to recreate, once more: http://img243.imageshack.us/img243/1579/monthlysolarenergy.png Please help! ... 14 Apr 2010 12:08

listbox problem - arguably a bug
Try this in matlab. I wanted to create a listbox that would allow multiple selections. In this example, I had two choices in the listbox. So logically, I set 'min' to 1, and max to 2. If I set the 'value' property to either 1 or 2, it works correctly. But if I wish to allow the user to select both options, with both se... 14 Apr 2010 09:53

Spherical Axes
Hi all, I have a 3d antenna pattern. I have turned off the x,y,z axes but would like to show another axis that has the angles phi(0:360) and theta (0:180) enclosing the pattern. Any ideas how to do this? Your assistance is much appreciated. Thanks ... 14 Apr 2010 09:53

geometrical object recognition
Am a beginer...i need to recognise square,rectangle,triangle in an image can anyone help me in coding... i hve detected object and bounded it using bwboundaries() now i should recognise shape of that object plz send me code.... ... 14 Apr 2010 13:18

geometrical object recognition
Am a beginer.. can anyone help me in recognising circle,square,triangle objects... i hve detected object and bounded object using bwboundaries().. plz help me in coding recognition part... ... 14 Apr 2010 09:53

Cant' properly convert cell to matrix
Hi guys I have 10000x1 cell array 'table'. Some of these cells are empty values([]), so lets say isempty(table{983}) returns true but in general most of them contain numeric values and is not empty. I want to convert this cell array to matrix but if I do: matrix=cell2mat(table); then the resulting matrix has less n... 14 Apr 2010 09:53

Thank you
Thank you I'll try that. I remember it was more easily done with just a parameter in a function but ok. Thanks either way :) ... 14 Apr 2010 09:53

@saplotstopping in simulannealbnd
Hi, Does anyone here familiar to SIMULANNEALBND can explain and describe generally the graph in @saplotstopping. what does this graph mean?....i do not really understand. cheers! fuaada ... 15 Apr 2010 11:22