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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...

plus d'un an ago | 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...

plus d'un an ago | 0

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Answered
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...

plus d'un an ago | 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;...

plus d'un an ago | 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.

plus d'un an ago | 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.

plus d'un an ago | 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...

plus d'un an ago | 0

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Answered
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...

plus d'un an ago | 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])

plus d'un an ago | 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...

plus d'un an ago | 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...

plus d'un an ago | 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...

plus d'un an ago | 1

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Answered
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(...

plus d'un an ago | 0

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Answered
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...

plus d'un an ago | 0

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Answered
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))]

plus d'un an ago | 0

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Answered
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...

plus d'un an ago | 0

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Answered
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.

plus d'un an ago | 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]);

plus d'un an ago | 0

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

plus d'un an ago | 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

plus d'un an ago | 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...

plus d'un an ago | 0

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Answered
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...

plus d'un an ago | 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.

plus d'un an ago | 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 ...

plus d'un an ago | 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.

plus d'un an ago | 0

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Answered
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:...

plus d'un an ago | 0

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Answered
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...

plus d'un an ago | 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.

plus d'un an ago | 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; ...

plus d'un an ago | 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...

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