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Sam Chak


Last seen: Today Active since 2020

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Answered
How do I deploy singleton membership function in fuzzy logic output
Hi @Evans Here's how you can create fuzzy singleton membership functions. In this code snippet, I'm using three singletons. % ...

1 hour ago | 0

Answered
Hello, please can you help me to solve the error in this code below!!!!
Hi @yousra yahia I'm not entirely certain about the purpose of your code since some lines appear to deviate from the strict rul...

15 hours ago | 0

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The distance traveled by a ball falling in the air is given by the equation x = x_{0} + v_{0}*t + 1/2 * a * t ^ 2
Hi @Felix Jim It might be beneficial for you to explore how to utilize MATLAB for solving dynamical equations, particularly whe...

19 hours ago | 0

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What would be the equation of the following surface?
You can probably try this quadratic function , where is a constant, and , . Update 1: Another candidate function for the surfa...

1 day ago | 0

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Answered
how to write a complex transfer function
Ensure no space in . numerator = [-10.45 -10.53 -.2246 0]; denominator = [0 1 1.2116 -.1087-.0909j]; sys = tf(num...

1 day ago | 0

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Answered
I am having trouble to define in matlab the transfer function of the following block diagram.
Hi @Jake In order to obtain the transfer function of the plant, you can likely perform the algebraic manipulations in the manne...

5 days ago | 1

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LQR for nonlinear system is running but not tracking
Hi @Kamal I wanted to bring to your attention that the controllability matrix does not meet the requirement of full row rank. I...

5 days ago | 0

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Index exceeds the number of array elements. Index must not exceed 1.
Hi @Deepti t I would recommend calculating the ITAE (Integral of Time-weighted Absolute Error) within the Simulink model and co...

15 days ago | 0

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Learn Optimization Techniques with MATLAB
Hi @Donne If this is indeed a static optimization problem, the minimization of the volume of the cone clutch can be achieved by...

15 days ago | 0

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How to solve 'out of memory' problem while solving coupled differential equation ?
Hi @Golam I have a suspicion that the main issue lies in the state equation of , possibly due to the excessively large values o...

17 days ago | 0

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Answered
How to chnage the coefficent for transfer function?
Hi @Shambaven Srimurugathas I believe that the following result is probably what you are seeking. Update 2: As per what you w...

17 days ago | 1

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Finding range of variable for which eigenvalue of matrix is negative.
Hi @Manas I'm not sure how you mathematically derived the matrix in the question. However, based on your comment, the 3-by-3 st...

20 days ago | 1

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Hi, I am new to Matlab. When typing in a line of code, nested in it is a helper function, can someone assist me with the correct placement of the helper function.unction
Hi @Augustine In the past, the convention was to save the helper function as a standalone m-file, typically placed in the same ...

21 days ago | 0

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Answered
I am having trouble with PID controller design Non minimum phase system
The pidtune() command from the Control System Toolbox can be applied to this problem. %% Plant s = tf('s'); Gp = (3e-09*s^...

22 days ago | 0

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How to define Fuzzy Rules?
Hello @Moussa Here's how we go about estimating the number of rules based on the given number of inputs and the number of membe...

22 days ago | 1

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Solution of a second order differential equation
Hi @Swami I've got a solution from the bvp4c() solver. syms y(x) L = 1; A = 1; p = x^2; s = 10*diff(y,x) + 100000*...

22 days ago | 0

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Difficulties in pole placement of an observer usign "place" command
Hi @Salvatore De Luca In general, the Observer is typically designed to respond at least twice as fast as the full-state closed...

22 days ago | 0

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Answered
How do I make a secondary Y axis
Hi @Kami S Perhap a possible solution for manipulating the graph labeling is by using the yticks() command, which allows you to...

22 days ago | 0

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Answered
heat and mass transfer problem nonlinear differential equations
Hi @uma I wanted to inform you that I have discovered five sets of Equilibrium Points for the system. However, it appears that ...

22 days ago | 0

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Questions about the PID controller of an inverted pendulum
Hi @Carmen Serrano Portillo Could you please check if the current response of the inverted pendulum under the PID controller al...

24 days ago | 1

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Answered
Index in position 1 exceeds array bounds. Index must not exceed 1.
Hi @Yu In addition to the technical points raised by @Jon and @Dyuman Joshi, there is a major issue with the way you have model...

24 days ago | 0

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Answered
how to solve these cubic equations with three terms and three equations
Annyeonghaseyo @재혁 Can you verify if the following three simplified equations are 100% correct, or are the equalities merely ap...

24 days ago | 0

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Step Response Initial Value Unchangeable?
Hi @Edward Robson In the "Design Requirements" documentation, it is explained that the fields are greyed out because step respo...

25 days ago | 0

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I am unable to run this program.
Hi @Puja I've indicated the location where you should apply a fix to it. second_oder_ode function second_oder_ode % ...

26 days ago | 0

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Answered
Nonlinear impact model of a tennis racket and a ball
Hi @Farnam I wanted to share that Andre Agassi is my all-time favorite professional tennis player. When observing the motion of...

26 days ago | 0

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Nonlinear Iteration is not converging?
Hi @Yusuf Taha Okutan Based on your Simulink model titled "PID.slx," it seems that you are attempting to simulate the motion of...

26 days ago | 0

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Searching for resources , books or PDF
Hi @AMIT SURYAVANSHI You can explore MathWorks-endorsed books on Communications Systems by visiting this link: https://www.math...

26 days ago | 0

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Answered
I dont know how to integrate a function with variables depending on time
Hi @Diego Martínez Caldas You can utilize the odeToVectorField() function to convert the 2nd-order differential equations to a ...

27 days ago | 2

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Answered
How can I design and simulate an anti-surge controller for centrifugal compressor using Fuzzy Logic controller?
Hi @MADUKA CHIKA I came across a relevant paper titled "PID and Novel Approach of PI Fuzzy Logic Controllers for Active Surge i...

28 days ago | 0

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Answered
Looking for an state controller for NON-linear systems
Hi @Martin Mittrenga Update: Since the system is nonlinear, traditional methods like Ackermann's method won't be suitable. Howe...

28 days ago | 0

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