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

5 years ago

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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...

5 years ago

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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...

5 years ago | 0

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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

5 years ago | 0

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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 ...

5 years ago | 0

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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....

5 years ago | 0

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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....

5 years ago | 0

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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 ...

5 years ago | 0

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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

5 years ago | 0

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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...

5 years ago | 1

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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)...

5 years ago | 1

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

5 years ago | 0

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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...

5 years ago | 0

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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...

5 years ago | 0

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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...

5 years ago | 0

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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...

5 years ago | 0

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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...

5 years ago | 0

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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...

5 years ago | 0

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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-...

5 years ago | 0

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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 ...

5 years ago | 0

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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)

5 years ago | 0

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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...

5 years ago | 0

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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 ...

5 years ago | 1

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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') ...

5 years ago | 0

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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]; ...

5 years ago | 0

Solved

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...

5 years ago

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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)...

5 years ago

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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 ...

5 years ago

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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];

5 years ago

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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. ...

5 years ago