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Paul


Last seen: 1 jour il y a |  Actif depuis 2011

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I am working on an assignment for class I can't figure out how to round the values in the table to two decimal places. Can anyone point out what I am missing?
It appears that formating numerics in a table is not same as the format used for display in the command window. Do you have to ...

environ 11 heures il y a | 0

Question


How Can a sym Vector have Elements that are Vectors Themselves?
I ran the following code on 2024a syms x c1 c2 real m1c(x) = c2 + c1*x + heaviside(x - 4)*(3*x - 2)*(x - 4); This line causes...

environ 13 heures il y a | 1 réponse | 0

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Question


Simplify() Does Not Work with "All" Argument?
This is a bug? syms x c1 c2 real m1c(x) = heaviside(x-4)*(3*x-2)*(x-4) + c1*x + c2; simplify(diff(m1c(x),x),'All',true)

1 jour il y a | 1 réponse | 0

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Matrix multiplication between an operation matrix, such as the rotation matrix, and a coordinate list.
y_rotation_matrix=@(theta) [cos(-theta) 0 sin(-theta);0 1 0;-sin(-theta) 0 cos(-theta)]; rng(100) coordinate_list=rand(10,3);...

3 jours il y a | 0

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Errors in the symbolic integration of the Dirac Delta function (bug?)
Hi Geoffrey, Not sure why there seems to be a problem with the antiderivative v1. You should consider reporting it as bug. I've...

3 jours il y a | 0

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Is it possible to 'interpolate' in FFT data?
Hi xd. Here is one way to think about this problem. Let c[n] = A*cos(w_0*n + phi) be the reference signal where -pi <= w_0 <= ...

6 jours il y a | 1

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Run an enabled and triggered subsystem only one time (single shot)
Does it really need be enabeld and triggered? Even if so, it should only run when triggered (and enabled), so if the trigger tr...

8 jours il y a | 0

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Designing an Output Zeroing Input for an LTI Discrete-Time System in MATLAB
Hi shokouhfeh, I did not go through all of the math. But I do see that the input is of the form u[k] = (-1.1)^k That magnitud...

12 jours il y a | 0

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vpa, simplify, solve, etc don't fully simplify symbolic function.
l = 50; a = 10; W = 1200; syms Q(z); Q(z) = 1200 + 56*z - 2.5*z^2; R = - int(Q(z), [0 l]) + W; syms F1(z) F2(z) F3(z); F1...

14 jours il y a | 0

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what is this block called
That is a Memory block.

15 jours il y a | 1

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Transfer function model from block diagram
The easiest way, IMO, is to use connect. Feel free to post back here if you still have questions after reading the doc page and ...

16 jours il y a | 0

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Help with MATLAB symbolic toolbox
Hi Scott, See below for solution % Set up symbolic variables syms t C1 C2 % Set up parameters K = 2.2167e+06; M = 45.96; ...

21 jours il y a | 0

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fftshift implementation in Simulink
fftshift is extended to code generation. Assuming the data output from the FFT block is in linear order, you can call fftshift f...

22 jours il y a | 0

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ECEF 6DOF block - position calculation
Hi Thomas, As far as I can tell, the translational equations in the Algorithms section of the documentation page 6DOF ECEF (Qua...

23 jours il y a | 0

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Data extraction/split from table
Hi Daher, Start with findgroups identify the unique rows in the table and map each row to a unique row. T = readtable('art_fil...

25 jours il y a | 2

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Does enu2ecefv make any assumptions about the ellipsoid?
Hi Eitan, See Vectors in 3-D Coordinate Systems for a brief explanation.

28 jours il y a | 0

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How to calculate only several frequency with FFT ?
If the desired frequenices are a subset of those that correspond to the DFT as computed by fft, I'd imagine in many cases there ...

28 jours il y a | 1

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how to search parameter with specific name under the simulink system
Check out Simulink.findVars

environ un mois il y a | 0

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possibility to create "Enbaled" subsystem
One option would be to create the subsystem as an Enabled subsystem and then control the enable port with a signal that you cont...

environ un mois il y a | 0

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steady plot end with different rate of rise question
Hi fima, The functions being plotted are of the form syms y_i(x) r_i disp(y_i(x) == exp(r_i*x) - 1) Why should y_i(x) be the...

environ un mois il y a | 0

Réponse apportée
Serious Problem with FiltFilt Function
The filter is not unstable. Rather, the issue is an interaction between how filtfilt works and the implementation of the biquadr...

environ un mois il y a | 0

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Could not define a data in matrix form in model workspace ( for simulation)
Based on the limited description, I'm not quite sure how you'd like to run multiple iterations of a simulation for different par...

environ un mois il y a | 0

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How to plot a string signal/array?
I don't believe there is a built-in function to plot a string vector against a numeric vector in any fashion, much less to produ...

environ un mois il y a | 1

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readtable does not import headers properly while reading csv file
dbtype data.csv T = readtable('data.csv','LeadingDelimitersRule','keep','ReadVariableNames',true); T(1:5,:)

environ un mois il y a | 0

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no data in the data browser when i use model linearizer in simulink
See this Question and Answer.

environ un mois il y a | 0

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unable to identify and simulate a function block
Try using a Constant block and set the block parameter "Constant value" to 2*Kr*lfc. Can do the same for the Kr*lfc term as well...

environ un mois il y a | 0

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How to change the default x-axis unit in a Bode diagram to Hertz?
ctrlpref allows one to change the default units for frequency axis when plotting with bode and bodeplot (among other defaults in...

environ un mois il y a | 1

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Deconvolution of two Bragg Curves
D = dir; D(3).name T1 = readtable(D(3).name); T1.Properties.VariableNames VarName2 = T1.Var2; D(4).name T2 = readtable(D(4...

environ un mois il y a | 0

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Which exponential option block: fcn vs math function, is more accurate in a Simulink model?
In general u/fc (top path), is not exactly the same as u*(1/fc) (bottom path) in floating point. Example: rng(100) u = rand; ...

environ 2 mois il y a | 0

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Why does this special case for associativity of a matrix product with a hadamard product hold true?
Hi Clay, If you're willing to accept (or show, which I think would be straight forward) that, in Matlab, matrix .* row is equal...

environ 2 mois il y a | 2

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