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Frequency input to Transform Function
Hi Nerma, Check freqresp. The second argument should be a real vector of frequencies (typically > 0). The multiplication by 1j ...

4年弱前 | 0

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How to solve a system of linear homogeneous equations in which the unknowns are column matrices?
Hi Celso Accroding to linsolve: "If the system does not have a solution, linsolve issues a warning and returns X with all eleme...

4年弱前 | 0

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Vertical line for Bode plots
Hi, Nerma, xline draws the line in the current axes, which appears to be the phase axes, which aren't visible. So we can do thi...

4年弱前 | 1

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Plotting the distance between 2 time stamped sets of 100hz Navigation data (difference in Latitude & Longitude)
Hi John, As always, it's best to post some sample data and code and then explain what you think isn't working or what you'd lik...

4年弱前 | 0

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How to plot the movement of system roots(poles) with variations to a free system variable
Hi Sohail, Let's let a2 = 1; a1 = 1; We can still set up the problem for using root locus sys = tf(1,[a2 a1 0]); % D(s) = 0 ...

4年弱前 | 0

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Why does yulewalk produce an unexpected dip in the middle?
Hi Nathan, Here's the original code from the question. % Get data clc;clear;close;format compact; format short g; Fs = 48000...

4年弱前 | 0

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Solving a system of equations
Hi Mitra Maybe this will extend to the larger problem. syms x1 y1 z1 x2 y2 z2 syms a [1 20] A=[x1,y1,z1,0,0,0,1].'; B=[a1,a...

4年弱前 | 0

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How to return function arguments as a struct?
Change the signature of the function to function out = designSpec(varargin) At the bottom of the function assign to the struct...

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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
Hi Federico, If sysansq_equi.B has five columns then INPUT_equi must also have five columns. Also, the number of rows of INPUT_...

4年弱前 | 0

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How to concatenate elements in cell array to a vector?
Q= [23 34; 44 55; 56 71; 63 49; 71 30]; B= [12 13; 10 99]; C{1}=Q; C{2}=B; Output = reshape(vertcat(C{:}).',1,[])

4年弱前 | 1

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FFT convolution and iFFT process
Hi Yassine, What does this mean: "df (can be variable),"? df should be a constant for all of FT. Is that not the case? Let's...

4年弱前 | 0

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Accelerance FRF with modal FRF?
The two blue curves look pretty close, perhaps just off by a scale factor (except for the dip at ~600 Hz?). Those curves are the...

4年弱前 | 1

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How to plot imported data into matlab equations
One way that uses symbolic (which isn't really necessaray) syms omega mu epsilon sigma h k1 = omega .* sqrt((mu .* epsilon)/(2...

4年弱前 | 0

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The numerator returned from ord2 function is not directly compatible with tf2zpk function.
Hi James, I'm not sure this really is a problem; all functions are working as documented. A shorter way to get the z,p,k of the...

4年弱前 | 0

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Symbolic solve with user-specified precision
Hi @Kylekk Perhaps I don't fully understand the Question, but I don't think there's a way to force the Symbolic Toolbox to find...

4年弱前 | 0

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Determining highest power frequency in noise signal
Hi Walter, The original code in the question subtracted the mean of the entire signal (T), not the mean of just the portion to ...

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Multivariable Zeros using Generalised Eigenvalue Problem
Is tzero what you're looking for?

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How do i delete the spaces that are in the middle of a string array?
replace seems to do the trick Single char: str=' 123 456 '; replace(str,whitespacePattern,'') Cell array of chars rep...

4年弱前 | 0

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diffrent plots if I add the command assume (0<=t) why ?
I suggest getting in the habit of using heaviside for problems like this syms t f_t3 = cos(12*t)*exp(-0.4*t)*heaviside(t); f_...

4年弱前 | 1

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44.1 kHz Sample Rate
The main question is: why is there a magnitude peak, even after the signal has been filtered? If the input to a stable, linear ...

4年弱前 | 1

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Introduce step signal after system response
Hi mikel, No need to use ode45 for this particular problem. The delayed step response with initial conditions can be obtained a...

4年弱前 | 1

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What is the use case for ifft's trailing zero padding? Why is that the default?
Hi Kevin, I think the title question is misleading. The result of zero padding ifft is not incorrect. It does exactly what it c...

4年弱前 | 1

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How to find empirical and estimated (Weibull) probability density
fitdist might do the trick for fitting the distribution

4年弱前 | 0

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unexpected object of type 'RootOf'
I'm going to speculate that the denominator of Zges*rect in Aufheiz6Var is of too high of an order for the Symbolic Math Toolbox...

4年弱前 | 1

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Changing delay length to solve algebraic loops
Refering to the block diagram at the top of the question .... Would it be correct to replace the IC block with a Constant block...

4年弱前 | 0

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Calculate Impedance of circuit using laplace transform.
Assuming that the input voltage has a Laplace transform, you can multiply Zges with the Laplace transform of the input and take ...

4年弱前 | 1

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I am trying to plot this piecewise function using for loop and if statements, yet I keep receiving error message: Array indices must be positive integers or logical values.
Hi Errol, The error message shows up because the code uses g as a subscript into C, and g takes on non-integer values. But g is...

4年弱前 | 0

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Using mscohere() on two Signals with different sampling frequencies each
resample might be useful to bring the sampling rates together. Lots of options involved, so probably want to experiment to make ...

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Replacing elements in a vector
array1 = [1 2; 4 2; 5 5; 4 2]; vector1 = [2 1 1 4 3 4]; result = [2 1; 4 1; 3 3; 4 1] result1 = vector1(array1)

4年弱前 | 0

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Creating a string with Permutation
Hi hazmah, Is this what you're looking for? Axes_name = string({'sint0.2';'sint0.5';'sint0.7'}) fold_2 = string({'BCA';'BPCA'...

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