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When simulating the response to a specific input signal, the input data U must be a matrix with as many rows as samples in the time vector T, and as many columns as input channels.
Try the following code. By the way, I did not understand why you gave *zeros* as input, therefore I changed it with *ones* vecto...

1年以上 前 | 0

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finding all possible Kp and Kd that makes the system stable?
Define this transfer function in MATLAB command line: Gs=tf([1 2 10],[1 5 8 3 12]); and then write pidTuner(Gs) to...

1年以上 前 | 0

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simulink -dervitive in the s domain
The only possible way that you are going to implement that is to use a *Transfer Fcn* block and set its numerator to _s_ and its...

1年以上 前 | 0

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solving a differential equation
Use *Symbolic* approach: R=1000;L=0.8;C=1e-3; syms v(t) eq=diff(v,2)+(1/(R*C))*diff(v)+v/(L*C)==0; cond1=v(0)==10;...

1年以上 前 | 0

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algebric loop error while running
Add a *Delay* or *Unit Delay* block in front of the _Product5_ block in your model to solve the issue.

1年以上 前 | 0

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unable to compile simulink fft and peak algorithm due to some error.
Enter *Buffer* block and set its _Output buffer size(per channel_ parameter to *3* or to a number more than 3.

1年以上 前 | 0

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I cant get this plot to work please help me :(
Try this: f1 =@(x) (1./(cosh(x).*cos(x)-1)).*(16.*(-(x.^3).*(cosh(x).*sin(x) + cos(x).*sinh(x))).*(-x.*(cosh(x).*sin(x)-cos...

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How transform cell to logical?
Do you want to convert the elements with number to *true*? Try this: test(cellfun(@(x) ~isempty(x),test))={true} Note tha...

1年以上 前 | 1

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Use switch for a matrix row
Use _if_ instead _switch_: if all(M3(i,:)==[0 0 0 0]) if all(M3(i,:)==[1 1 1 1])

1年以上 前 | 0

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Simulation of a Nonlinear Robotic System with Matrix Coefficients in Simulink
Run the attached model. All you need to do is to change the parameters within MATLAB Function blocks and observe the results. Ho...

1年以上 前 | 0

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how to obtain pid output to 0 to 90 using automatic PID tunner
Are you talking about *saturating* your control signal? There are two options: 1-You can basically use a *Saturation* block f...

1年以上 前 | 0

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Simplification of "for" loop MATLAB R2018a
By the power of *implicit expansion* starting from R2016b in MATLAB, your desire can be achieved in one line of code: r=resh...

1年以上 前 | 1

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How to generate all the 3 by 3 matrices ?
One approach: while true A=randi([1 20],3,3); if (2*A(1,1)<=(A(1,2)+A(2,1))) && (A(1,1)<=A(2,2) && A(1,1)<=A(...

1年以上 前 | 0

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problem with taking Differentiate from variable with counter !
Well, the approach would be as follows: n=30; x=sym(zeros(1,n));%preallocation syms t for i=1:n x(i)=str2sym...

1年以上 前 | 0

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Limit the values of the extreme elements of a vector.
Maybe this will help: low=0;up=10;n=9; A=[0 sort(low+(up-low)*rand(1,n))]

1年以上 前 | 0

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How do I find the average of all rows across a series of columns?
You do not need a loop for this. Consider the following case: A=randi([1 4],1000,10);%demo data res=mean(A,2); *res* va...

1年以上 前 | 0

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What is the triangular block symbol in this model?
It looks like a _logical operator_. You need to check the *Logical Operator* block for that purpose.

1年以上 前 | 0

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I am plotting (x,y) coordinates in a simple plot and the plotted values lies in 1st Quadrant.However, I want to see all the 4 quadrants , how to customize it?
Try this: x=0:5;y=0:5; plot(x,y);grid on; set(gca,'XLim',[-20 20]); set(gca,'YLim',[-20 20]);

1年以上 前 | 0

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save data from all loop iterations
You need to read about _for loop_ and _subscripting_. <https://www.mathworks.com/help/matlab/ref/for.html>

1年以上 前 | 0

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How to create a specific diagonal Matrix
Try this: T=3; for i=1:T A(i,:)=circshift([ones(1,T) zeros(1,T^2-T)],T*(i-1)); end

1年以上 前 | 0

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Have a function take a string and an number as an input?
If you call it as follows, it works perfectly: >>alloy='Al2'; T=300; [Alloy,Temp]=ThCond(alloy,T) The thermal co...

1年以上 前 | 0

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How do we calculate the integration of an imput handle function
*int* is used to calculate integrals of *symbolic functions*. To find integral of function handle, use *integral*. <https://w...

1年以上 前 | 0

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could anyone tell me is it possible to solve the issue.
Use *hold on* to plot both graphs in one figure.

1年以上 前 | 0

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how do i fix Initialize Variables error when starting quadcopter model in simulink?
Use *File->Model Properties->Model Properties->Callbacks->PreLoadFcn* to initialize variables automatically every time you open ...

1年以上 前 | 0

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I need help having my function display both outputs
When I call it as follows: [Eupper ,Elower]=HS(5,3,7,6,2,5,4) %inputs are random it gives me both output.

1年以上 前 | 0

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Find a letter position within a word.
This might help you: function indexes = find_letter_positions(word,letter) indexes = zeros(1,numel(word)); for i = 1:...

1年以上 前 | 0

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Fourier Series in matlab with for loop
You do not need a _for loop_. If you have *Symbolic Toolbox*, the following code should do it: syms f(t) n k=5; %upper l...

1年以上 前 | 0

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How make an equivalent function of unit delay in matlab
*Delay* block comes with its _Input Port_ choice within the mask in its *Source*. Check the attached figures.

1年以上 前 | 0

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Store results from loop.
I believe you need to read about _for loop_ and _subscripting_. Try this: As1=510; fy=420; h = 650; d = 590; Es = 200000; ...

1年以上 前 | 1

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loop in sum series and product
You don't need a _for loop_. If you have *Symbolic Toolbox*, you can easily calculate it as: syms t n l=3;m=6;k=3; %rand...

1年以上 前 | 0

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