Matlab

need help with problem PLEASE!!!
I am stuck on a problem where i need to combine newton’s method and the composite trapezoid rule. I’m not the best at matlab and can’t figure this thing out. Integral 0 to x of (1/(sqrt(2*pi)))*(exp((-t^2)/2)) dt = 0.45 The question: Find a solution x to within 10^-5 by combining newton’... 2 Dec 2009 04:19

Why is MOVEFILE so slow?
I have seen this before but just don't have time to look into it. Actually there is not much that I can do since MOVEFILE is a built-in function. I use MOVEFILE to rename file but it seems to me that it takes some time if the file is large. This should not happen. Am I missing something? ... 14 Dec 2009 09:53

Problem with bvp4c
Hi, I am trying to solve 3 non-linear 1-Dimensional odes, which I have linearized to 6 odes with 6 variables and 6 boundary conditions (3 each on two boundaries) I wrote the following file: function testhome global K1 K2 alphac meshh delta K1 = 1.015393096999939e-08; K2 = 2.180429609600968e+04; alphac = 1; me... 30 Nov 2009 16:57

MEATools name conflict
Hi I'm comletely new to using MatLab and know only the basics. I recently downloaded the MEATools for MatLab, but there seems to be a conflict of names with a couple of the files. I get the following on opening MatLab: "Warning: Function C:\Program Files\MATLAB\MEATools\assert.m has the same name as aMATLAB bui... 3 Dec 2009 07:01

lsqnonlin routine options
I get the following error when i run lsqnonlin routine "Maximum number of function evaluations exceeded; increase options.MaxFunEvals" Where exactly i can increase the above parametre. I tried already in the command "OPTIONS = optimset('Display','iter','MaxFunEvals',100,'TolFun',1e-30, 'TolX',1e-30);" which p... 30 Nov 2009 13:35

TOMLAB optimization
Hi everyone, I am working with TOMLAB optimization package for MATLAB and the demo license for that has been expired. Is it possible for some one of TOMLAB experts to send me an extension license for TOMLAB demo version? Because I really need this software for optimization right now. ... 30 Nov 2009 10:14

spike detection algorithms
hi , i have a large no of digital data (3000 pts) in which there may be some spikes (not a true spike but may be called as a spike which is not defined by the relation d/dt = 0) i want to know the algorithms for these type of spike detection Any help would be greatly appreciated ... 30 Nov 2009 06:57

synchronize two three phase voltage supplies
Hi all, does anybody know how to synchronize the phase of a three phase source based on another three phase source in SIMULINK? The three phase source block doesn't seem to take in any variables to set its phase. I can't get my PLL to interact with it.Somebody pls help.Thanks ... 29 Nov 2009 23:24

about ftsgui
I find that there is a function named ftsgui in the toolbox and it can plot 2 drawings in a figure as 2 ylabel and they are in the both sides morever, the 2 drawings are next, no blank areas during the drawins, don't like function"subplot", which plots drawing with a width. I want plot the figure myself and it c... 29 Nov 2009 23:24

OPQSK Modulation Issue - Simulink
Hi! I am very new to matlab and I am trying to design a physical layer for IEEE 802.15.4 in Simulink. The model is like this: Random Integer Generator-->Lookup Table-->Integer To Bit Converter-->OQPSK Modulator -->OPQSK Demodulator-->Bit To Integer Converter-->Lookup Table 2-->Scope I will add an AWGN bloc... 29 Nov 2009 22:19