Risposto

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; ...

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; ...

21 giorni fa | 0

Risposto

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...

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...

21 giorni fa | 0

| accettato

Domanda

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....

23 giorni fa | 1 risposta | 0

Risposto

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...

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...

23 giorni fa | 0

| accettato

Risposto

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...

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...

26 giorni fa | 0

Risposto

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...

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...

circa un mese fa | 1

| accettato

Risposto

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...

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...

circa un mese fa | 0

Risposto

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...

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...

circa un mese fa | 1

| accettato

Risposto

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...

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...

circa un mese fa | 0

| accettato

Risposto

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...

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...

circa un mese fa | 0

Risposto

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...

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...

circa un mese fa | 0

Risposto

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 ...

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 ...

circa un mese fa | 0

| accettato

Domanda

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...

circa 2 mesi fa | 0 risposte | 0

Risposto

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...

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...

circa 2 mesi fa | 0

Risposto

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?...

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?...

circa 2 mesi fa | 0

Risposto

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...

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...

circa 2 mesi fa | 0

Risposto

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...

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...

circa 2 mesi fa | 0

Risposto

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...

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...

circa 2 mesi fa | 0

Risposto

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...

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...

circa 2 mesi fa | 1

| accettato

Risposto

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...

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...

circa 2 mesi fa | 0

| accettato

Domanda

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?

circa 2 mesi fa | 1 risposta | 0

Domanda

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...

circa 2 mesi fa | 1 risposta | 0

Risposto

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 = ...

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 = ...

circa 2 mesi fa | 0

| accettato

Risposto

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...

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...

circa 2 mesi fa | 0

| accettato

Risposto

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...

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...

circa 2 mesi fa | 0

Risposto

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 ...

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 ...

2 mesi fa | 0

| accettato

Risposto

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...

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...

2 mesi fa | 0

Risposto

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...

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 mesi fa | 0

| accettato

Risposto

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 ...

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 mesi fa | 2

| accettato

Risposto

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...

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 mesi fa | 0

| accettato