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How Does Symbolic Math Toolbox Define Differentiation of a Complex Function?
Hi @Paul In my opinion, "fomally computes the derivative" probably means MATLAB is applying the literal, mechanical rules of al...
4 jours il y a | 0
How to get back former diagram representation
Here is the code for maintaining the desired aspect ratio of the plot. If you select “Copy as image” from the generated plot a...
9 jours il y a | 2
Is there something wrong with my code? (Using dsolve to solve systems of linear differential equations)
Here is the numerical solution, though I don't know how to interpret the amplitude of the displacements. The unit is likely "mil...
13 jours il y a | 0
Pid tuner, tuning tools section is inactive
Hi @Yusuf Suer Erdem I investigated the issue. In the PID Tuner app, the Response Time slider and the Transient Behavior slider...
14 jours il y a | 0
| A accepté
How to Test for Lyapunov Stability in Simulink
In Simulink, you can probably set up the block model as shown below. Since the Hermitian positive-definite matrix has already b...
14 jours il y a | 0
how do i solve the matrix equation
I know this question is more than a decade old. For anyone trying to implement the top solution in MATLAB, note that there is a...
16 jours il y a | 3
Need guideline for PID control design based on Lyapunov approach
Given a 2nd-order linear system: you want to find a general analytical expression for directly in terms of the elements of a...
17 jours il y a | 0
How to multiple very large numbers in Matlab?
When I was a young kid, I remember a math teacher showing our class a brilliant trick to find the product of a number consisting...
20 jours il y a | 0
Using matlab to solve Lyapunov function
Despite this is a standard homework question, professors almost never use MATLAB to demo a rigorous Lyapunov or LaSalle stabilit...
20 jours il y a | 0
How do I input "dy" in the default sisotool architecture?
The symbol "dy" should be mathematically read as where the subscript "y" is associated with the output "y". From its placement ...
20 jours il y a | 0
How to pass step forcing function in system model to ode15s
Hi @Andrew While the ODE solver can change its integration step size on the fly to find sharp corners, by drastically shrinking...
23 jours il y a | 0
How can I control the output range using the anfis() function?
In a standard ANFIS, one cannot directly restrict the output universe of discourse or the final output to a specific range such ...
environ un mois il y a | 0
How to avoid ANFIS warning
Try this: warning('off', 'all');
environ un mois il y a | 0
Error in MATLAB code for Sugeno fuzzy system
The FIS output object of y is "Outputs", not "output". It's a syntax error. The "newfis" and "setfis" commands have been removed...
environ un mois il y a | 0
how to plot states of takagi-sugeno state space model in matlab?
This example is presented because the forum and official documentation lack comprehensive, functional examples of the Takagi–Sug...
environ un mois il y a | 0
Plotting Symbolic 3x3 System of Equations
Hi @Athanasios Paraskevopoulos This is a meaningful contribution toward writing a linear algebra textbook for high school stude...
environ un mois il y a | 0
why its giving NaN (Not a Number)
I revisit the problem. There is no error in the coding terms. Although the nonlinear aircraft system is intended to be modeled a...
environ un mois il y a | 0
Hello. I want to model an SVC (with TSC & TCR) for power factor correction, but I would like to use a PI controller to control the SVC. How can I do that?
Hi @Fretz What you requested here is almost equivalent to the effort required to produce a thesis or an industrial technical re...
environ un mois il y a | 0
Axes label in root locus
Hi @Anna This is not a solution to the R2026a labeling issue with rlocus or rlocusplot, but rather a primitive math approach (o...
environ un mois il y a | 0
| A accepté
How to avoid horizontal black lines across the map and how to force Meridian lines to print every 30°on the map?
Cartography isn’t my business, but it seems that disabling crs.ProjectionParameters in the generated code removes those thick bl...
environ un mois il y a | 0
If f(t) =t^n, find L [f(t)]
Use the command from Symbolic Math Toolbox. syms u t % creates symbolic variables f = sin(u*t); % the expression f(t...
environ un mois il y a | 0
Plotting fit lines on multiple sets of data in one plot - how to limit each of the fit lines start and end points?
Hi @Caelan Without seeing the code, I suspect you may have accidentally extrapolated at query points outside the domain covered...
environ 2 mois il y a | 0
is it easy way to use robust fuzzy logic controller for AGV
Hi @Medihiya In my design experience, it may not be as simple as @Umar described above. While it is necessary to ensure that th...
environ 2 mois il y a | 0
how to write fuzzy rules for pd controller
To design a fuzzy controller that achieves the same performance as a conventional PI or PD controller, we can use a 9-rule Sugen...
3 mois il y a | 0
sugeno -to - mamdani conversion
In the past, we cannot convert a Sugeno system to a Mamdani system because it will force MATLAB to perform a structural transfor...
3 mois il y a | 0
formula for exponential membership function
Technically, it is called the Laplace distribution, or the double exponential distribution. The Gaussian MF has a rounded peak, ...
3 mois il y a | 0
Solving two masses connected in series by springs
Hi @Robert Just additional lines for the displacement, velocity and acceleration of the 2nd spring. % ODEs of two springs fun...
3 mois il y a | 1
| A accepté
Fuzzy MPPT Limit Cycle Oscillation: Duty cycle hunting between 0.2 and 0.35 (Boost Converter)
Hi @一超 I can't provide definitive answers to those 3 questions, but identifying the MPPT system transfer function and the perfo...
3 mois il y a | 1
| A accepté
SOSTOOLS for differential-algebraic systems?
Hi @Husni Rois Ali, This is not a complete answer in the MATLAB or SOSTOOLS sense, but it should provide insight into approachi...
4 mois il y a | 1
| A accepté
how to generate this sawtooth waform with phase shift of 4pie/5
Hi @Sibongakonke There are several ways to generate a sawtooth wave. When seeing a repetitive pattern of straight line segments...
4 mois il y a | 0
