Answered
Help me plot the solution in graph
Hi @Hung, I'll show you another two ways of plotting the line equations. syms x y % specify the two line equations eqn1 ...

3 years ago | 0

Answered
How can I train ANFIS using Particle Swarm Optimization algorithm ?
Hi @Ahmad To achieve a lower prescribed error measure, you can manually increase the number of Membership Functions until the d...

3 years ago | 2

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How to put the fis I designed in Fuzzy Logic Designer App to Simulink?
Hi @JingChong Ning Follow these steps, and it should work. Suppose you have designed a fuzzy logic system and named it "myFuzzy...

3 years ago | 0

Answered
Element Wise Matrix multiplication issue (.*)
Hi @Yuvraaj Pasumarthy If you want to examine the effects of varying the beta values while keeping zeta and mu fixed, the struc...

3 years ago | 1

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Writing a system of ODEs for ode45
Hi @Noob, Your code is unfinished, and when you run it, MATLAB will throw an error message. You can also try solving the ODE by...

3 years ago | 0

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MATLAB code for fuzzy logic based battery scheduling for 24 hours in microgrid to minimize cost and grid dependency
Hi @REENA I can fix the warning message in the fuzzy system. Could you please interpret the meaning of the output values for me...

3 years ago | 1

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How to solve this equation?
Hi @Ali Almakhmari, It seems that there are no real solutions for . From the graph, we can see that we need to lower the quadra...

3 years ago | 1

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Answered
Linear Driving Force Model for Gas Adsorption in Fixed Bed
Hi @JUBAIR AHMED SHAMIM Editted to run your supplied code. The state responses (Tbed, Twater, Tgas) converge to the same value ...

3 years ago | 2

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Answered
How to solve 2nd order coupled differential equations?
Hi @Gloria, If there are time-dependent elements in the mass matrix, the idea is to define the generalized 'Mass' matrix in ode...

3 years ago | 1

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How to use harmonic fitting method
Hi @TTA, I'm interpreting your 'Harmonic' model as the 'Sum of Sine' model. If this is not the case, then you will need to crea...

3 years ago | 1

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Answered
Simulation step size in simulink is very small and takes really long to run. Unable to solve it
Hi @Suhas Raghavendra Kulkarni, It's not bad for a beginner in Simulink to create a rather sophisticated model using mostly use...

3 years ago | 0

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MATLAB code for fuzzy logic based battery scheduling for 24 hours in microgrid to minimize cost and grid dependency
Hi @REENA There are many syntax errors because the name and behavior of some functions in Fuzzy Logic Toolbox have changed sinc...

3 years ago | 2

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Answered
Solving system of odes with a power using ode45
Hi @Thomas TJOCK-MBAGA I presume that Xinit is not equal to , and . I tested this with the ode45 solver, and it also works with...

3 years ago | 2

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Answered
Need Help with MATLAB Fuzzy Clustering - Trouble Implementing Example
Hi @Baptiste Please take a look at this example. The data set is specified as a matrix with 9 rows, each representing a data po...

3 years ago | 0

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How to open simulink example in matlab?
Hi @Jagadish Babu If you cannot find the example file in the MATLAB examples directory, then it is most likely that this exampl...

3 years ago | 0

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I don't know why my code makes odeToVectorField error
Hi @Student, The highest-order derivative is embedded in or D2s. Notably, one of the terms in this context is nonlinear, as d...

3 years ago | 1

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How do you solve equations with multiple variables?
Hi @Ilan, some multiplication operators (*) are missing. It is working now. % List of Parameters E1f = 233; v12f = 0.200; E...

3 years ago | 2

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Answered
Application of any numerical root finding method (secant, bisection, etc.)
Hi @ABDALLA AL KHALEDI Take pride in the fact that your Bisection method yields the same result as fzero(). Cs = 0; d = 0.5; ...

3 years ago | 1

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How do I solve an equation with an unknown variable?
Hi @TC Yes, there is a useful function called 'isolate()' in Symbolic Math Toolbox. If you want to do this iteratively, please ...

3 years ago | 0

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Element Wise Matrix multiplication issue (.*)
Hi @Yuvraaj Pasumarthy, Update: With the values of zeta, beta, and mu provided, you can plot something. You can try experimenti...

3 years ago | 2

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Answered
How can I show the stability graph?
Hi @Can Yilmaz, The transfer function can be rewritten as where where the characteristic equation defines the behavi...

3 years ago | 0

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Solving symbolic third order polynomial
Hi @Axel Degrande The trajectory position is chosen to be a cubic polynomial. From this cubic polynomial, the velocity can be...

3 years ago | 0

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How to simulate the forced response of a transfer function
Hi @Ali Almakhmari The 'lsim()' command is great when the Control System Toolbox is available. Here is an alternative approach ...

3 years ago | 1

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How do I do a regress like this?
Hi @Leon I'm not exactly sure what you want. If you're looking to find the exact percentage drop, as @Image Analyst has shown y...

3 years ago | 1

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How to find kp, ki, kd values from transfer function
The question (in the title) about finding PID gain values {, , } from an unspecified transfer function is not exactly clear. Giv...

3 years ago | 1

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slow simulation because of integrator
Hi @Magda Since no details are provided to describe why the simulation is slow, I can only guess that the system is stiff. To a...

3 years ago | 0

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How can i solve this.
@Nia, You can look up some examples here: https://www.mathworks.com/help/signal/examples.html More importantly, could you pl...

3 years ago | 0

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how to find stable and unstable spiral point?
@Yixuan Qi, This is actually the Rayleigh Differential Equation. I assume you would like to utilize a graphical approach, as the...

3 years ago | 0

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Integral MPC in Simulink
Hi @Ale_798 Thank you for clarifying the problem. I'm not an expert in MPC, but after reviewing your comment, I believe you can...

3 years ago | 0

Answered
LMIterm problem: Error using lmiterm, Complex number, NaN or Inf not allowed in A, B.
Hi @Syue-Cian The code looks okay. Can you show the matrix A_F? Performing Test #1: % Test #1 A_F = eye(2) setlmis([...

3 years ago | 0