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All capital?
Are all the letters in the input string capital letters? Examples: 'MNOP' -> 1 'MN0P' -> 0

alrededor de 5 años hace

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Who is the smartest MATLAB programmer?
Who is the smartest MATLAB programmer? Examples: Input x = 'Is it Obama?' Output = 'Me!' Input x = 'Who ?' Ou...

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Matlab Error Uint 8
You can't run your fcn file: steganografie without providing the input arguments, viz. imag1, imag2, n Make sure while calling...

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How to fill end of rows of a matrix with NaN values?
Hi, here is a simple solution, e.g.: M = magic(5); M(:,end)=nan

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symsum gauß, how to calculate sum of series ?
There are a few curcial errs in your developed code. (1) Don't name a function with MATLAB's builtin function names. You have ...

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How to plot principal component (PCA)?
Here are two nice documentation that address your raised questions: https://www.mathworks.com/help/stats/pca.html https://www....

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Principal Component Analysis PCA
Here are two nice documentation that address your raised questions: https://www.mathworks.com/help/stats/pca.html https://www....

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Fourier Transform of signal
Here is the completed code for fft calcs: t = 0 : 0.001 : 2; x = (2*(exp(-4*t))).*(cos(10*t).*heaviside(t)); L= numel(x); Y ...

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How to run a Simulink Model (.slx) and while loop in (.m file) simultaneously?
This is the general syntax to simulate Simulink model with a loop, e.g: for ii=1:N OUT(ii)=sim('ABC.slx'); end

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Can you help me with the output of my optimizer?
You'd need define a math formulation of fun_objetivo = @(par,pfrac)FunObjetivo(par); Once it is done, you can run via loop iter...

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Fourier Transform of a random Signal
Hi, Here is the complete code: t = 0 : 0.001 : 2; x = (2*(exp(-4*t))).*(cos(10*t).*heaviside(t)); L= numel(x); Y = fft(x)...

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trisurf to surf
Here is a nice code developed by a matlab community user: https://www.mathworks.com/matlabcentral/fileexchange/4512-surf2stl ...

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Adding z-values for surf/contour plots - PART II
You can use polar coordinate system and then you can compute the values of r in terms of x and y. To convert cartesian to polar...

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How to recognize a multiple faces from a single image
Mathworks has many great documentations on this issue. You can see: http://www.mathworks.in/help/vision/ref/vision.cascadeobjec...

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select data from plot and update other plot
Hi, Maybe you can try to employ ginput() to select the region and plot the selected region afterwards. Along the way you wo...

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getting data from workspace to Simulink
Hi, In this case, you'd need to generate two column data from your imported data ([To Woskspace] block) into matlab workspace...

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Hello everyone. I would like to ask you two questions. The first problem: know A = [0.4,0.9], B = [2,9], and find the linear equation through A and B. The second problem: how to remove all zeros in a matrix. D=[1 2 3; 1 7 2; 6 2 7,0 0 0,0 0 0].
Question (1) is a simple LA exercise, but [A] needs to be 2-by-2. And then you can compute the roots of the system using linsolv...

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Is it possible to access the value of the variable step size (of the independent variable) used by ODE45 within the ode function?
Hi, As if I undertood your question correctly, you'd like to save and display simulation iteration process, correct? If this...

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compare columns of matrix using groupcounts
Hi, Here are good help hints and docs given how to compare matrices: https://www.mathworks.com/matlabcentral/answers/446605-...

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Recovering precise points on a graph
You may try using graphical input with ginput(), e.g: [x, y] = ginput(5); % Five freq. values, viz mag and f values will be ...

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How can i export figure with all bold axes saved?
Hi, Here is a simple answer: ... exportgraphics(gcf,'p.png','Resolution',600)

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find the local maximum and minimum values and saddle points of the function
Hi, Here is an approrpriate discussion with solution codes for your exercise: https://www.mathworks.com/matlabcentral/answer...

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Solving composite equations with symbolic toolbox
Hi, Here is the corrected code with the symbolic solutions (A, B) of the two equations: clearvars syms A B w g alphaL p AR ...

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Plotting Graph - 1D Advection
Hi, Here is the corrected part of your code and the rest of your code remains the same: ... figure(1) plot (x,z,'b') ...

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How do I put it in?
It is quite simple. x1 = [-4.2 -2.6 -1 0.6 2.2 3.8 5.4 7 8.6]; x2 = [0.8 2.4 4 5.6 7.2 8.8 10.4 12 13.6]; x1 = [x1, x2]; ...

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Return unique values without sorting
If the input vector A is [42 1 1], the output value B must be the unique values [42 1] The *values of B are in the s...

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Fibonacci-Sum of Squares
Given the Fibonacci sequence defined by the following recursive relation, * F(n) = F(n-1) + F(n-2) * where F(1) = 1 and F(1)...

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multiply by three
Given the variable x as your input, multiply it by 3 and put the result equal to y. Examples: Input x = 2 Output y is ...

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Arrange vector in ascending order
Arrange a given vector in ascending order. input = [4 5 1 2 9]; output = [1 2 4 5 9];

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Program an exclusive OR operation with logical operators
Program an exclusive or operation *without* using the MATLAB function xor. Use logical operators like |, &, ~, ... instead. ...

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