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Incorrect number or types of inputs or outputs for function 'step'
Hi Archit, It would be much easier to help if you copy/paste the actual code into the Question rather than a large screen captu...

2年以上前 | 0

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ss2tf taking too long
Which version of ss2tf are you using? The one that ships with Matlab which -all ss2tf doesn't support sym inputs syms a b c d...

2年以上前 | 0

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logging data from Simulink to workspace
Hi Asmaa, Because the signals are already in the simulation, why would there be a need to send them from Simulink to Matlab onl...

2年以上前 | 0

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Assistance with Transfer Function Output
The second input to lsim, called 'input' in the code, has to be a vector (becuase Hd is single input) of numerical values. So yo...

2年以上前 | 0

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How to extract coefficients of custom variables in symbolic expression in MATLAB?
syms psi phi theta i_B j_B k_B psi_dot phi_dot theta_dot omega_B = (phi_dot - psi_dot*sin(theta))*i_B + (theta_dot*cos(phi) + p...

2年以上前 | 0

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Discrepancy in PI Controller Outputs for voltage control and current control for droop control strategy in MATLAB
With regard to this part of the code: % //PI controller for Vd error_vd(n)=((sqrt(2))*Vd_ref(n))-(V1d(n-1)); ...

2年以上前 | 0

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We have table，Why we use timetable？
It looks like timetables offer additional functionality helpful for dealing with time histories of data: Timetables

2年以上前 | 1

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creating cell array using find command
Hi Amit, Just need to prepend the index vector to keep the first column. rng(100) analysisdataacd3 = num2cell(randi(3000, 10,...

2年以上前 | 0

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Receiving an error when using interp2 to interpolate longitude and latitude (Error using griddedInterpolant Grid arrays must have NDGRID structure.).
lon = xlsread('lon.xlsx') ; lat = xlsread('lat.xlsx') ; elevation = xlsread('elevation.xlsx') ; interp2 requires matrix input...

2年以上前 | 0

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PID Controller in Simulink question
Set the 'Source' parameter to 'external' as in doc for PID block. The you can calculate the gains external to the block as funct...

2年以上前 | 1

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Problem in filtering my desired frequency
Hi Abdullah, A couple of issues to address in the anlaysis. I think you started by trying to define an ideal filter in the fre...

2年以上前 | 0

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Problems in dynamic symsum variables in solving a system of equation
Hi Tsz Tsun, Why not just use regular sum instead of symsum when the goal is to just take the sum of a finite number of terms? ...

2年以上前 | 2

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Problem in plotting the convolution
Hi Abdullah, Although not stated explicitly in the Question, I'm going to assume that a) the objective is compute the convolut...

2年以上前 | 0

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how to interpolate stepfunctionresponse
Hi Hassen, I don't undertstand how the matrix i fits into the problem, and I assume that one column of the Matrix is a time vec...

2年以上前 | 0

質問

Is there a way to Rewrite a Symbolic Expression in Terms of nthroot?
Suppose I have a symbolic expression syms x real g = x^(1/3) - 1 I'd like to evaluate g for negative values of x, either symb...

2年以上前 | 1 件の回答 | 0

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get x knowing f(x)
finverse works well in this case. syms f(x) y f(x) = exp(x); g(y) = subs(finverse(f),x,y) g(23)

2年以上前 | 0

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acker(): "Error using sym/poly". Why?
Hi John, A = [0 1; -4e5 -400]; B = [0; 4e5]; C = [1 0]; Aaug = [A, zeros(2,1); -C, 0]; Baug = [B; 0]; H = 1.0e+12 *...

2年以上前 | 1

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質問

What are Your Thoughts on TMW Documentation Linking to the File Exchange
Kind of similar to this Question, I noticed that the Tips section of integral3 cites this File Exchange submission as an option ...

2年以上前 | 2 件の回答 | 0

2

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Why am I getting different frequency responses for the same filter using bode() and fvtool()?
Hi Rinitha, Here is the design of the low pass filter fs = 500; % Sampling frequency Ts = 1/fs; fc = 100; % Cutoff frequency...

2年以上前 | 2

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Reference Frame for Forces Going into 6DOF (Euler Angles)
According to 6DOF (Euler Angles), the force inputs are the components of the net force resolved in Body Coordinates. If the "Z d...

2年以上前 | 0

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質問

What are the Pros and Cons of the RandStream Transformation Algorithms?
RandStream objects offer three choices for the transformation algorithm for computing standard normal random variates as shown o...

2年以上前 | 1 件の回答 | 0

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Manually compute LQI() gains using Algebraic Riccati Equation / Hamiltonian
Hi John, I just copy/pasted the code from the question (not the attached .m file) with some semicolons to suppress output and i...

2年以上前 | 0

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Calculating a mean matrix of a cell array
Try mean(cat(3,A{:}),3,'omitnan') The omitnan flag will ignor the nan entries in the computation of the mean.

2年以上前 | 0

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Shift and duplicate values in a data set
Couple of options M = magic(4); Z = zeros(12,4); for ii = 1:3 Z(4*(ii-1)+1:4*(ii-1)+4,:) = [zeros(4,ii-1) M(:,1:end-ii+1...

2年以上前 | 0

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Assign array in field struct
Example data Sis(1).a = 1; Sis(2).a = 2; Sis(3).a = 3; c = [30 40 50]; Assign elements of c to new field of elements of Sis...

2年以上前 | 0

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Why Does get_param(gcb,CompiledPort*) Return Weird Results for Several Object Parameters ?
Thanks to @Andy Bartlett discussion in this thread, and further review the doc, the model has to be put into compile mode before...

2年以上前 | 0

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simulation issue about Scope
Hi wenchao zhang, The Constant block, by default, has a constant sample time. For the model shown, constant sample time means t...

2年以上前 | 0

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How to declare a function as extrinsic and execute it in Simulink through Matlab Function block
Try using coder.extrinsic to declare the wrapper .m function as extrinsic in the Matlab Function block and call the java functio...

2年以上前 | 1

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Create a local system of equations function from a set of anonymous functions
One approach: equations = {'@(x1,x2)x1.^2+x2-6','@(x1,x2)-2.5.*x1+x2.^2-2'};%Set your equations N = numel(equations); f = ce...

2年以上前 | 0

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How to remove struct fields of a specific type
The function class can be used in a loop over the fieldnames to identify the fields to be removed with rmfield. s.w = int32(0);...

2年以上前 | 1

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