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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...

10 years ago | 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 ...

10 years ago | 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...

10 years ago | 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 ...

10 years ago | 0

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

10 years ago | 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');

10 years ago | 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...

10 years ago | 0

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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 ...

10 years ago | 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...

10 years ago | 0

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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 , ...

10 years ago | 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...

10 years ago | 0

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

10 years ago | 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...

10 years ago | 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.

10 years ago | 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...

10 years ago | 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...

10 years ago | 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)]...

10 years ago | 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, ...

10 years ago | 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...

10 years ago | 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];...

10 years ago | 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...

10 years ago | 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=...

10 years ago | 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...

10 years ago | 0

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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,...

10 years ago | 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...

10 years ago | 0

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

10 years ago | 0

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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 ...

10 years ago | 0

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How to complete the fourier Analysis using Matlab ?
Try to study and alter this example : Fs=10; t=-3:1/Fs:3; x=exp(-t); plot(t,x) N=1000; % N points for frequency computa...

10 years ago | 1

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Recover gaussian by using fft and ifft.
Try : G(end)=[]; G=(sqrt(2*pi))*G; figure; plot(t,f,'r',t,G,'g');

10 years ago | 0

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what is the meaning of? K*(i-1):end
c_t(i,1+K*(i-1):end) means selecting elements identified by *1+K(i-1)* to *end* from matrix c_t in the row *i*, generally *X(...

10 years ago | 1