Matlab

fnval and cubic splines (pp)
B-splines are zero outside their support, any function in B-form is zero outside the basic interval of its form. This is very much in contrast to a function in ppform whose values outside the basic interval of the form are given by the extension of its leftmost, respectively rightmost, polynomial piece. I have a pp ... 5 Jun 2010 14:41

shade area between two curves
Hi I need to shade the area between two curves ( representated by two columns in a data set). on a plot and I can't seem to be able to do this. Any suggestions? Thanks a ton A ... 3 Jun 2010 17:53

Turning off axis tick labels using Matlab code
Hello--- I am generating a number of plots which will be stacked on top of each other for easy comparison. In other words, each plot will be exported as an image file (JPEG or TIFF) and placed on a PowerPoint slide. All of these plots have the same tick labels on the x-axis. I am wondering if there is a wa... 3 Jun 2010 17:53

6 Nonlinear equations 6 unknowns
Hello All, I have 6 non linear equations with 6 unknowns. I rewrote the equations to be in the form of f(x)=0 Then I tried this: [m1,m2,k1,k2,c1,c2]=solve('(m2*k1)+(c2*c1)-73.62','(k1*k2)-2.656e6','m1*m2-0.000575','(c2*m1)+ ((c2+c1)*m2)-0.01065','(m1*k2)+ (k1*m2)+(k2*m2)+(c1*c2)-113.5','(c2*k1)+(c1*k2)-2.656e6... 3 Jun 2010 22:19

Converting Certain Data from Numeric Matrix to Text
Hi all, Below is an example of the set of XYZ data I am working with: XYZdata = [ 1 1 0.4 1 2 0.2 1 3 0 2 1 0 2 2 0.8 2 3 0.7 ] I would like to find all Z values that are zero and replace the zero with the term 'No ... 4 Jun 2010 09:12

loading a file
Hey, I was hoping someone can help me out with a problem i'm having: i am trying to load a file in matlab, a sample of which is shown below: 15:03:21 II 0.88 0.64 15:03:21 II 0.82 0.64 15:03:21 II 0.40 ?.?? 15:03:21 II 0.38 0.40 etc.... the "load" function doesnt work... 3 Jun 2010 16:45

Running max without for loop? The fastest way?
tmp is an 1D array: runningMax=zeros(size(tmp)); for m=1:length(tmp); runningMax(m)=max(tmp(1:m)); end; How to do it without for loop? ... 3 Jun 2010 17:53

read serial port in real time
Hi. I am trying to read from a device connected to the serial port and view the data as it is coming in in realtime. However, it takes quite a while to read a relatively small ammount of data, up to 20 seconds before the data is obtained. I am using the code below and have tried using, fcsanf, fread, fgets, but all ... 7 Jun 2010 00:56

@Steve, concerning 500$ spam
Dear Steve! Don't forget, if you feel the need to respond to spam, *snip* out any URLs or email addresses in your reply. Otherwise you're just giving the spammer more advertising. Sorry, you are absolutely right (serious). I admit I have been too deeply impressed by the message so I stopped thinking clear... 3 Jun 2010 19:01

Simulink Three-phase source waveform
Hello there I'm new to Simulink and one of the first thing's i've done to explore it was trying to see the three-phase source waveform through the scope. Such a pitty there's no way to post any picture here, like a printscreen, so you always have to describe the schemes using words, that can be pretty difficult ... 5 Jun 2010 02:47