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How to simulate a spherical pendulum in matlab?
You can look for solution in this link : <http://scicomp.stackexchange.com/questions/8595/numerical-instability-of-spherical-...

presque 8 ans il y a | 1

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How do I randomly select a zero in a matrix and replace it with a value from another matrix?
The description is not complete, because localization of position in zero matrix requires two indexes x and y try : B=zero...

presque 8 ans il y a | 0

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FFT of tidal data - problems identifying Mf component in MATLAB
From the result in the second figure; you can remark that there are two frequency components. which means that there are two wav...

presque 8 ans il y a | 0

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How can I find the x and y coordinate of the first pixel of an image .
I think you mean the intensity of the first element in each block, otherwise, you already know the coordinates : firs block ...

environ 8 ans il y a | 1

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How can I seperate a superposition of sine and random waves?
Separation of two wave forms can be accomplished using Kalman filter or wiener filter, you can find resources of these two filte...

environ 8 ans il y a | 0

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How to represent a wave in 3D and its Interference with other waves?
simulation is done using the absolute value of electric field (Ex,Ey,Ez), and linear medium allows linear superposition, then a ...

environ 8 ans il y a | 0

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Covert voice to binary?
see : dec2hex(value) the value must be decimal and positive, or at least floor(value).

environ 8 ans il y a | 0

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Why will the legend command not display descripitions properly when using a non-solid line style in R2014B?
Remove the curly brackets and try again as : h=legend('One','Two','Three','Four', 'Location', 'Northwest');

environ 8 ans il y a | 0

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Problem with ezplot function and transcritical bifurcation, but not with other bifurcations
The ezplot function returns the following error message : Input must be a string expression, function name, function handl...

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Help with matlab homework
Since this is homework, partial answer is given, You have to start with the following : X=[(-3)^4 (3)^3 (3)^2 ...

environ 8 ans il y a | 0

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Converting Upper triangle to lower triangle
If the question consists of converting lower triangular binary matrix into upper triangular one, then is it possible to use logi...

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Compute the power spectrum using FFT method
The essay is correct, Some remarks are : 1. Try to give variables names different than those of already built in functions , ...

environ 8 ans il y a | 1

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How to repeat an array?
Many solutions exist for this problem, the first one is the repmat solution: a=[1 2 3]; b=repmat(a,1,3); The second sol...

environ 8 ans il y a | 0

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A soumis

Marchenko Pastur Law
Simulation In random Matrix Theory

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Communicating with external hardware
hi, Did you the analogue input solution : out=daqhwinfo; Info=out.InstalledAdaptors; AI = analoginput('...

environ 8 ans il y a | 0

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plotting piecewise functions with logarithm
If the input vector X is negative, log produces complex result. Try the following version : x=[-40:0.01:40]; g=5; if x<0...

environ 8 ans il y a | 0

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How do I refine my integration?
Accurate result is obtained if you use the same sampling rate,as the original function, in integral.

environ 8 ans il y a | 0

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How can I create a train chirp pulse?
That is an interesting problem, before trying to use pulstran function, create a linear frequency function and use square functi...

environ 8 ans il y a | 0

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how to transform a gauss code into a matlab code
Not familiar with Gauss software, but i think there are differences, per example the initialization of matrices, therefore you n...

environ 8 ans il y a | 0

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How to create a movie with different plot components?
To clear the previous sample, try : for t=1:(2*pi/w1)+1 %Calculations... plot([A1(1) A2(1)],[A1(2) A2(2)]...

environ 8 ans il y a | 2

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How to solve for pressure using the velocity field?
This problem is for non compressible fluid, first you have to explain the equation you want use, for this two dimensional case, ...

environ 8 ans il y a | 1

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How can I plot the following curve (which is in an implicit form)
For this form of equation, you can use contour function, or symbolic function *ezplot*, for the first solution you need to use m...

environ 8 ans il y a | 2

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how can I determine the mean intervals given a confidence level of 98%?
Try : t1=[37.79 39.51 38.54 39.14 39.02 39.4 39.01 37.18];% T2 (22.4 22.07 22.15 21.72 21.75 22.55 22.18 21.92];...

environ 8 ans il y a | 0

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Importing MATLAB Figures into Latex
Besides the explained proposition above, try to specify the extension in the source File : \usepackage{graphicx} \us...

environ 8 ans il y a | 0

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why the bode function doesn't work?
The description is correct and the code is working correctly,try clearing the existing variables clear all; s=tf('s'); g=...

environ 8 ans il y a | 0

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Round random vector to nearest number in a fixed vector
Try logical test : CoolingC = [1,2.3,5.3,7.2,10.2,12.2]; CoolingC(CoolingC<2.5)=2 CoolingC(CoolingC>=2.5 & CoolingC<7...

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Matlab 3D Plot Help
The program contains an error because y is an empty vector, the version below is altered to have Pb and Pa with same dimensions,...

environ 8 ans il y a | 0

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problem in creating an array
The reason the output is scalar is because you divide a vector by vector like in this example *rand(1,4)/rand(1,4)*, to return...

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How to delete a row in matrix?
a(1)=[];

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How can I mix two arrays?
This question is general due to the variation of array dimensions, however for a particular case you described, vectors A and B ...

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