photo

Traian Preda


Active since 2013

Followers: 0   Following: 0

Message

Statistics

  • First Review
  • Thankful Level 1

View badges

Feeds

View by

Question


Create a 3 D bar plot for the following matrix?
Hi, I have the following matrix Z in attach and I want to create a 3D bar plot for the values of the Z axis. And then display t...

9 years ago | 0 answers | 0

0

answers

Question


Why x*V is different by the V*D when I use the eig function?
Hi, I have the following x matrix. And I try to get the right eigenvectors of it using eig? It seems that when I do the produ...

10 years ago | 1 answer | 0

1

answer

Question


How I can use the eig function for nonsymmetric matrices?
Hi, I have a non symmetric matrix and I try to figure out which option of the eig I should use? Thank you

10 years ago | 1 answer | 0

1

answer

Answered
eig versus svd functions?
OK, then this can be reason that when I try to rebuilt the A matrix, I cannot succeed by using the V, D eigenvectors ([V,D]=eig(...

10 years ago | 0

Answered
eig versus svd functions?
Hi again, For example for this A matrix (square) I get using eig different right eigenvectors than by using svd. Seems that t...

10 years ago | 0

Question


eig versus svd functions?
Hi, I would like to ask what is the difference between the function eig and svd and what is the difference between the right ...

10 years ago | 3 answers | 1

3

answers

Question


Can I estimate only the A matrix using State Space Estimation of the ident toolbox?
Hi, I would like to ask if is possible to estimate only the A matrix of a state space if I have as signals the states variati...

10 years ago | 0 answers | 0

0

answers

Question


Solving system of equations?
Hi, Can anyone help me to solve this system of equations? I need to find those 12 equations which make my system numerically. ...

10 years ago | 0 answers | 0

0

answers

Answered
Obtaining bounded continuous curve from a sawtooth curve
Hi, I tried unwrap but it not working or maybe I am using it wrong. You can see the 3 phases inb attach I have to represent t...

10 years ago | 0

Question


Obtaining bounded continuous curve from a sawtooth curve
Hi, I have a problem to resolve I have to obtain bounded continuous curve from a saw tooth curve of a phase angle. How I can ...

10 years ago | 2 answers | 0

2

answers

Question


How I can change the arrows line width and the text to both a compass and it's legend?
Hi, I have to produce some compass plots and I want to change using the script the arrow line width, the line style and the h...

11 years ago | 0 answers | 2

0

answers

Question


How can I rotate an eigenvector (complex) to make it real?
Hi, There is any function in Matlab to rotate a vector/eigenvector to make it real? Thanks

11 years ago | 0 answers | 0

0

answers

Question


How do I convert a dat file to a matrix ?
Hi, I have a dat file like this and I want to convert it to the correspondent matrix. Any idea? 33 33 0 -14,28571414...

11 years ago | 1 answer | 1

1

answer

Question


Why I cannot get a solution for this system?
Hi, I have the following system of equations for which I have an initial guess. But I cannot get any solution. Anyone can hel...

11 years ago | 1 answer | 0

1

answer

Question


Why I get this error ''Undefined function 'plus' for input arguments of type 'sym'.''?
Hi, I triy to execute the following system of equations syms Psiad0 Psiaq0 Rfd Lfd Ladssec R1d L1d R1q L1q Laqssec R2q L2...

11 years ago | 0 answers | 0

0

answers

Question


Create a vector name from two integer variables
Hi, I want to create a vector name from two integer variables. For example I have two for loops for i=1:N for j=1:M an...

11 years ago | 3 answers | 0

3

answers

Question


System Identification Tool GUI
Hi, I am using the System Identification Tool for estimating a 6 order system from 6 measurements (all of them are output of ...

11 years ago | 0 answers | 0

0

answers

Answered
How I can resolve this system of equations?
Here is the original system of equations with the variables >> w0=1; H=11.2; phi0=-0.68; %rads Ra=0.01; Re=0; Xe=1.7; E...

11 years ago | 0

Answered
How I can resolve this system of equations?
Hi, The system describes the operation of a synchronous generator and it is done by identification between two matrices. H...

11 years ago | 0

Question


How I can resolve this system of equations?
Hi, I have a system of equation of 15 unknown variables, define like next. I get first a warning that even I have 15 varia...

11 years ago | 3 answers | 0

3

answers

Question


How I can change the arrow head and style in a compass plot?
Hi, I am using a compass plot to plot some vectors and Iwant to change the arrow head style. How I can do this?

11 years ago | 0 answers | 1

0

answers

Answered
How I can determine the phase and magnitude between two non periodic time series?
Hi again, Yes I want to observe the phase shift and the magnitude of two nonperiodic signals in time.

12 years ago | 0

Answered
How I can determine the phase and magnitude between two non periodic time series?
Hi, First thank you for your answer. That's I want to ask how I can plot time dependent phase and magnitude. Can you give ...

12 years ago | 0

Question


How I can determine the phase and magnitude between two non periodic time series?
Hi, I need to obtain the obtain the phase and the magnitude between two nonperiodic time series and plot it in time. I have o...

12 years ago | 3 answers | 0

3

answers

Question


mscohere function window calculation
Hi, I am trying to figure out, how I can choose the window, noverlap and nfft for using the mscohere function to obtain the c...

12 years ago | 2 answers | 0

2

answers