Matlab

problem with inicial conditions values
The ecuations for this problem are: dx=m1*x + b1 + f1(y) dy=m2*y + b2 + f2(x) where: / -c1 if y<0 f1(y) = | \ c1 if y>0 / -c2 if x<0 f2(y) = | \ c2 if x>0 and m1=m2=-0.9 b1=b2=0 c1=c2=0.5 for this case Is there another way that is better ... 30 Apr 2010 15:06

sensitivity analysis using simbiology
First, I have to confess that I am new to Simbiology. I followed the SimBiology Online Tutorial, BTW, it is a great tutorial. In the demo, when the sensitivity analysis was performed on the apoptosis model, the author got the most sensitivity to XIAP. All other species also have some sensitivity but to less degrees.... 30 Apr 2010 15:06

sensitivity analysis using simbiology
First, I have to confess that I am new to Simbiology. I followed the SimBiology Online Tutorial, BTW, it is a great tutorial. In the demo, when the sensitivity analysis was performed on the apoptosis model, the author got the most sensitivity to XIAP. All other species also have some sensitivity but to less degrees.... 3 May 2010 15:21

Modelling a network of power line and Transformer
I am trying to model a network that include a source, a transmission line, an RF Tool element (Transformer represented by a Shunted RLC circuit) and a transmission line with a scope. I don't know how to include the transformer section in the network. I am not using the RF tool but the model in Simulink. It ask me to pu... 30 Apr 2010 15:06

solving a system of two equations
Hi guys, I'm just curious if anyone disagrees with the following conclusions that I've drawn. If one considers two functions Q1(X,Y)=0.5*(A*(2*X*Y)-2*(C*Y+D*X)+E) Q2(X,Y)=0.5*(A*(Y^2-X^2)-2*(D*Y-C*X)+F) with function values Q1(X,Y), Q2(X,Y) where the point X=Y=0 is excluded, and all coefficients A,C,D,E,F are ... 1 May 2010 03:19

HELP!! neural network
Hi, I need to train a network. My input data, A=2 X N matrix, and my output (target), B =2 X N matrix. How do I go about training a network with this data? And how do I run simulation with the trained algorithm to make predictions? I know absolutely nothing on neural network functions. Somebody help plea... 1 May 2010 01:09

Exporting color figures to .eps, only get black and white
Whenever I export a color figure to .eps using saveas, the figure saves as black and white. If I manually export using the File menu, the figure saves properly. Using fileexchange code (export_fig) yields the same result. Any ideas? ... 30 Apr 2010 16:16

Load('.txt') only after first program run
I am programming a simple .m file to take a given set of displacements and a global stiffness matrix to determine an applied force at a set of nodes the global matrix is created from data in a .txt file that is loaded into the .m file using the load command, however after running the code one time, any consecutive r... 30 Apr 2010 15:06

output variables - GUIDE - varargout
"Borer " <febex2008(a)gmail.com> wrote in message <hkah45$5jk$1(a)fred.mathworks.com>... Hello, everyone out there! The "problem" with the data being deleted when closing the figure also happened to me. I tried several techniques, like calling the output callback in the CloseRequest callback. But nothing worked!! It ... 30 Apr 2010 13:57

loop question
can some let me know why the following code run very fast when i < 30 but then slows down considerably? thanks melissa numPoints = 2000; r(numPoints) = 0; rindex = 1; for i = 1 : numPoints for j = i+1 : numPoints-i+1 theDiff = round(abs(theData(i) - theData(j))); ... 30 Apr 2010 15:06