Answered
Expansion in a Fourier Series
% Problem_1 the Fourier series of the function f(x) % f(x)=0 -pi < x < 0 % f(x)=1 0 < x < pi %syms x n pi % pi=3.14; ...

19 dagar ago | 0

Answered
Plot Specific Points on Nichols Chart
Hi Amaan, The input to nichols has to be an a dynamic system model. So either you have to convert AbsN and AngN to such a mode...

19 dagar ago | 0

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Question


Answers Not Running Code?
Anyone else having trouble running code on Answers? I see it trying to run with 2024a, but get a message "Something went wrong....

21 dagar ago | 1 answer | 0

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Answered
Calculating a Fourier series with MATLAB manually problem
I don't think anything is wrong with the code in the Question, at least based on visual inspection (though it's always best to u...

21 dagar ago | 0

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Answered
Fourier Series Curve Fitting and giving its coefficient with respect to eqaution
Hi OLuxanna, The code is attempting to implement the complex exponential Fourier series using the C_n coefficients. Let's look...

24 dagar ago | 0

Answered
How can I use allmargin() with non-unity feedback?
Hi Erik, What's the loop transfer function, L(s), from which one could compute the stability margins (having already determined...

ungefär en månad ago | 1

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Answered
How to use exp^s for a transfer function in matlab
Models with internal delays are implemented in state space form. Ts = 1/2000; s = tf('s'); Gd = exp(-1.5*s*Ts); With Gd on...

ungefär en månad ago | 0

Answered
Is there a way to compute the n-th symbolic derivative of a function where n is also symbolic?
Hi Matt, I don't think so, at least not using diff syms f(x) x syms n positive real integer % Define the function for which...

ungefär en månad ago | 1

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Answered
gridureal samples does not match the sampled system.
Hi Mohammad, I confess that I can't explain how dss is implementing this uncertain, descriptor system. I'm particularly curious...

ungefär en månad ago | 0

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Answered
cosd() giving similar value for different angles
data = load('LatLong.txt'); speed_km = data(:, 1); latitude = data(:, 2); longitude = data(:, 3); The latitude is quite s...

ungefär en månad ago | 0

Answered
Understanding FFT in MATLAB
Hi Janee, Speaking only to the Matlab side of this question, why would it expected that the rows of u1 and up be the same? Each...

ungefär en månad ago | 0

Answered
Typo in the nufft (R2024a) documentation?
Hi Ana, Yes, either the plot command was intended for X or the ylabel is wrong. In the context of that example, I suspect they ...

ungefär en månad ago | 0

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Question


How Does mldivide Work for Full, Square, Full Rank, Triangular Matrix?
How does mldivide work when the input matrix A is full, square, full rank, and triangular? The doc page just say it uses a trian...

ungefär en månad ago | 0 answers | 0

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Answered
Plot Piecewise function graph
This line y(i) = 1./log(2)*sin(x(i)); is incorrect. The order of operations for multiplication and division is that they ar...

ungefär en månad ago | 0

Answered
How to use parameter callback to parameterize mask workspace?
What happens if you just enter T = 1/f; in the Initialization section and leave the f_callback blank, or delete it altogether?...

ungefär en månad ago | 0

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Inverse of a symmetric matrix consisting of submatrices is desired.
I wasn't going to post this as it didn't seem like a useful answer, but, since @Torsten raised the idea of using the block matri...

ungefär en månad ago | 0

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Assumptions are not being considered in symbolic math.
Hi Nick The issue is that the code is using linsolve, which doesn't know anything about the assumptions on the m_i. Generate a...

ungefär 2 månader ago | 0

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piecewise function Fourier seriers
Hi KUN, In the context of the Fourier transform, I'm not sure that the assumption on t makes sense, at least not in the context...

ungefär 2 månader ago | 0

Answered
want to differentiate 1+c*exp(t)/1-exp(t) which is 2*c*exp(t)/(1-exp(t))^2 and then return it to it's original form by integration using int(), understand rewrite(tanh,"exp")
Hi Joseph, I think you got the correct result, though not using what might be considered best practices syms f c t y(t) y ypri...

ungefär 2 månader ago | 1

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Answered
Problem with using mussv
Hi Ofek, N = 30; w_vec = logspace(-5,5,100); "I calculate it using the function freqresp and the resulting array has dimensio...

ungefär 2 månader ago | 0

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Question


What Does the Symbolic Math Toolbox Mean by 0 < s When s is Complex?
syms s syms t real f = int(exp(-s*t),t,-inf,0) What does that first condition mean insofar as s is complex?

ungefär 2 månader ago | 1 answer | 0

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Question


Does the Symbolic Toolbox Support 0- and 0+ ?
syms s syms t real f = int(exp(-s*t),t,-inf,0) Is the second term in the second condition a notation for (though I'm not e...

ungefär 2 månader ago | 1 answer | 0

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Answered
Adjusting a Sawtooth Graph and getting spectrum
Do you want a triangle or a sawtooth? Assuming the former as stated in the question, use tripuls %T = 10*50; fs = 2000; t = ...

ungefär 2 månader ago | 0

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Answered
how to find Laplace transform of u(-t) in MATLAB?
Hi Sundaram, The function laplace implements the unilateral Laplace transform for causal signals. However, heaviside(-t) is no...

ungefär 2 månader ago | 0

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Answered
How can a Simulink State Space block state be periodically reset?
i think you'll have to use an Integrator and other native blocks to implement xdot = A*x + B*u y = C*x + D*u Use the external...

ungefär 2 månader ago | 0

Answered
modred() Scaled Output
Hi Sam, I can't explain why TMW chose to change the behavior of modred. Having said that, I have some observations about your ...

ungefär 2 månader ago | 0

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Answered
How to get 2% and 5% settling time from simulink?
Hi Daniel, I'm interpreting your question to mean that you have a Simulink model of the system and in Simulink you stimulate th...

ungefär 2 månader ago | 0

Answered
Zero-order hold practical differentiator offsets magnitude
Hi Greg, I don't know if this will be the complete explanation your looking for, but here goes .... Define the continuous-time...

2 månader ago | 0

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Answered
Symbolic integration has 3 solutions based on integration variable range, how to extract one of these?
syms U_0 r Radius mom_2 = int((U_0*(1-r/Radius)^(1/7))^2*2*sym(pi)*r,r,0,Radius) One approach that just extracts the case you ...

2 månader ago | 2

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Answered
How to set the sample time of a discrete transfer function block to 0.005? Please tell
Hi ISHITA, TMW recommends leaving the sample time of that block as inherited. Instead, control the sample time of the signal th...

2 månader ago | 0

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