24 Nov 2014 at 7:54

Guillaume flagged
Can someone help show me how to do this?
as Not appropriate for MATLAB Answers

Use of insult by the OP.

23 Nov 2014 at 15:16

19 Nov 2014 at 21:17

Image Analyst flagged
i am working on ear recognition and want to apply watershed segmentation. is it possible to extract ear from face using watershed segmentation??
as Not appropriate for MATLAB Answers

Poster edited away the question.

19 Nov 2014 at 7:39

17 Nov 2014 at 19:52

Tony Soares flagged
an answer

Is this type of attitude really allowed on MATLAB Answers? I would never bother post again if I was on the receiving end of Image Analyst's bullying comments. I don't think this is something we should encourage if we want to our users to come back.

17 Nov 2014 at 15:34

17 Nov 2014 at 15:26

Geoff Hayes flagged
how to show the detail of a map , and insert it to a figure
as Unclear

Duplicate of previous post http://www.mathworks.com/matlabcentral/answers/163009-how-to-show-a-map

16 Nov 2014 at 20:52

Star Strider flagged
how can i show impulse response using impulse function in matlab?
as Unclear

DUPLICATE TO: <http://www.mathworks.com/matlabcentral/answers/162921-how-do-i-obtain-impulse-response>

16 Nov 2014 at 16:59

Geoff Hayes flagged
matlab code for the engine performance prediction using nntools
as Unclear

Not a question but perhaps a request for code.

16 Nov 2014 at 1:21

14 Nov 2014 at 21:23

14 Nov 2014 at 20:20

Star Strider flagged
Converting a set of indexed equations into a matrix?
as Unclear

EXACT DUPLICATE OF: <http://www.mathworks.com/matlabcentral/answers/162753-converting-a-set-of-indexed-equations-into-a-matrix>

14 Nov 2014 at 20:19

Star Strider flagged
Converting a set of indexed equations into a matrix
as Unclear

EXACT DUPLICATE OF: <http://www.mathworks.com/matlabcentral/answers/162637-converting-a-set-of-indexed-equations-into-a-matrix>

14 Nov 2014 at 16:22

Guillaume flagged
How to convert bitstream to packets and bitxor function
as Not appropriate for MATLAB Answers

Exact duplicate of http://uk.mathworks.com/matlabcentral/answers/162717 asked a few minutes later.

14 Nov 2014 at 14:49

14 Nov 2014 at 13:41

Abhay flagged
a comment

Dear sir , I am also in need to generate a 3d-plot of my problem for getting better analysis of it, but I am not getting a solution for that ,kindly help me . My problem is as follows: This is my request in finding out the state response of the system described by the equation: x(i+1,j+1)=A1*x(i,j+1)+A2*x(i+1,j)+B1*u(i,j+1)+B2*u(i+1,j) ------(1) x(i+1,j+1),x(i,j+1),x(i+1,j) are state vector matrices of nx1 dimensions. u(i,j+1),u(i+1,j) are input vector matrices of mx1 dimensions, A1,A2 are known system matrices of nxn dimensions, B1,B2 are known input matrices of nxm dimensions. further u(i,j+1)=k1*x(i,j+1)---(c), and u(i+1,j)=k2*x(i+1,j)----(d) where k1,k2 are feedback path gains provided on state vector x(i,j+1) and x(i+1,j) respectively of mxn dimensions,to make it stable closed loop system, i.e.,on substituting the value of u(i,j+1) and u(i+1,j) from (c) and (d) we get the closed loop system equation written below: x(i+1,j+1)=A1*x(i,j+1)+A2*x(i+1,j)+B1*k1*x(i,j+1)+B2*k2*x(i+1,j) ------(2) Equation (1) is an open loop system equation and equation (2) is representing closed loop system equation. When we going to plot the two equations, of course considering the initial condition, x(1,j)=0.5 and x(i,1)=0.2, then with the help of matlab plot we can able to see that open loop system plot is divergent representing an unstable system and closed loop system plot is convergent representing a stable system. .Can you please help me in writing matlab code for this open loop system and closed loop system so that I can generate my system plots I am in need to plot it, the function x generated by equation 1 and 2 with respect to i and j axis, for getting better insight into it. If you have any query regarding my question then, please get it clarified and kindly help me. Take A1=[.81 1;0 .22]; A2=[.1 1;0 .8]; B1=[-.01;0]; B2=[0;1]; k1=[.1482 .224]; k2=[-.0002 -.0009]; In this case ,the dimension n and m of the matrices are n=2 and m=1. I have tried with this code but the plot cannot be generated due to matrix dimension mismatching. A1 = [0, -.75; -1, 0]; A2 = [.27, 0; 0, 0]; A3 = [0, -.001; 0, 0]; N = 100; % 100 iterations. X(2, N, N) = 0; % Set both components to 1 at both boundaries. X(:, 1, :) = .12; X(:, :, 1) = .6; % Generate the values. for i = 1 : N-1 for j = 1 : N-1 X(:, i+1, j+1) = A1*X(:, i, j+1) + A2*X(:, i+1, j) + A3*X(:, i, j); end end [i,j] = meshgrid(1:1:100); mesh(i,j,X)

13 Nov 2014 at 7:46

Guillaume flagged
matrix increasing with a recoder
as Not appropriate for MATLAB Answers

Duplicate of http://www.mathworks.com/matlabcentral/answers/162356-recording-matrix-increasing-in-another-matrix

12 Nov 2014 at 20:50

12 Nov 2014 at 13:07

11 Nov 2014 at 10:51

11 Nov 2014 at 4:39

Geoff Hayes flagged
Could someone please help and code this in Matlab?
as Not appropriate for MATLAB Answers

Text appears to be copied directly from a homework question/assignment.

9 Nov 2014 at 4:03

Geoff Hayes flagged
Troubleshooting with fzero command.
as Unclear

Duplicate with previous post http://www.mathworks.com/matlabcentral/answers/161896-troubleshooting-with-fzero-command

7 Nov 2014 at 19:59

Ben Freireich flagged
i really need help to do this assignment please!! due today please
as Not appropriate for MATLAB Answers

6 Nov 2014 at 16:24

Joachim Schlosser flagged
how to model traffic light using stateflow in simulink?
as Not appropriate for MATLAB Answers

Homework question

5 Nov 2014 at 5:09

4 Nov 2014 at 23:56

4 Nov 2014 at 12:50

Geoff Hayes flagged
How to use logical condition in a for loop?
as Unclear

Duplicate of previous post http://www.mathworks.com/matlabcentral/answers/161253-help-solving-for-and-or-while-loop

2 Nov 2014 at 23:33

Star Strider flagged
How to create a row vectors return matrix?
as Not appropriate for MATLAB Answers

Third Question in the last few minutes from ‘Yuling’ (at Drexel University) that is a scanned-in and uploaded homework problem without even an attempt at coding it. I find this sort of blatant academic dishonesty highly offensive.

1 Nov 2014 at 19:07

Star Strider flagged
ask me please what is wrong?
as Unclear

DUPLICATE TO: <http://www.mathworks.com/matlabcentral/answers/160918-what-is-wrong-in-my-program>

1 Nov 2014 at 19:04

Star Strider flagged
what is wrong in my program!!?
as Unclear

DUPLICATE TO: <http://www.mathworks.com/matlabcentral/answers/160922-ask-me-please-what-is-wrong> THAT HAS AN ACCEPTED ANSWER.

1 Nov 2014 at 14:46

Star Strider flagged
matlab code to generate ecg signal by combining various combination poles & zeros
as Not appropriate for MATLAB Answers

Not even a question!

31 Oct 2014 at 15:47

Geoff Hayes flagged
error with arrayfun and GPU computing
as Unclear

Near duplicate with http://www.mathworks.com/matlabcentral/answers/160759-error-with-arrayfun-and-gpu-computing-part-2

30 Oct 2014 at 23:22

Geoff Hayes flagged
How to remove data from a plot
as Unclear

Duplicate of previous question at http://www.mathworks.com/matlabcentral/answers/160188-how-to-change-land-data-to-nan

30 Oct 2014 at 22:59

30 Oct 2014 at 19:40

30 Oct 2014 at 19:01

28 Oct 2014 at 14:43

27 Oct 2014 at 18:17

27 Oct 2014 at 14:52

Geoff Hayes flagged
Simulation of RFOC of asynchronous machine
as Unclear

Duplicate of http://www.mathworks.com/matlabcentral/answers/160218-simulation-of-rfoc-of-asynchronous-machine

27 Oct 2014 at 13:11

26 Oct 2014 at 1:41

per isakson flagged
Read text file and store in matrix form
as Not appropriate for MATLAB Answers

"Identical" to http://www.mathworks.com/matlabcentral/answers/159141-read-text-file-store-required-information-in-matrix-form-as-described-below

25 Oct 2014 at 19:15

RAKESH SHARMA flagged
Sin array and Nonlinear Blocks using USSC device
as Unclear

25 Oct 2014 at 13:16

Star Strider flagged
How do I fix my elements in my code so that they can be the same?
as Unclear

Duplicate to: <http://www.mathworks.com/matlabcentral/answers/160019-how-do-i-fix-my-elements-in-my-code-so-that-they-can-be-the-same>

23 Oct 2014 at 21:12

Guillaume flagged
edit edit edit edit
as Spam

This poster has edited all his questions (4 so far) to remove all useful content. It's just spam now.