Sam Chak

Last seen: 1日前 | 2020 年からアクティブ

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Solution of algebraic equation that a variable occures both in numerator and denomirator with respect to an other variable
Γεια @Anastasios Kyriakopoulos I would like to show graphically that the nonlinear equation is not strictly a quadratic equatio...

約18時間前 | 0

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How to determine if equation is not feedback linearizable
Hi @Ken I am not aware of a specific function in MATLAB to test whether a system is feedback linearizable. However, the given s...

1日前 | 1

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Machine and Deep Learning Books using MATLAB
Hi @Ahmed You can find the info about the books that provide codes for machine learning and deep learning using MATLAB here: h...

1日前 | 1

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how to write mat lab code for predict compressive strength of concrete using svm
Hi @Rathnaswamy You can use the data on concrete specimens with varying mix proportions and curing ages to train an SVM model u...

1日前 | 0

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How can I use the function coeffs() as the input to the function tf()?
Use double(). syms s n = (s^2+10*s+50)*(s^2+8.6*s+21.73)*(s^2-0.7*s+0.1625)*(s^2-2*s+3.25)^2*(s^2+4)^2*(s-2.2); x = expand(n)...

2日前 | 1

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How can I calculate the probability of false detection?
@Suleyman Aliyev, Do you expect the graph to behave like this? % Given parameters sigma2_values = linspace(0.1, 0.01, 100); ...

3日前 | 1

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Need help with DC motor modelling with PID
Hi @Irwan Shah The looping in your model is incorrect due to unit inconsistency. All calculations are performed in radians. Y...

3日前 | 0

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Problem with derivative block simulink
Hi @Purvaja Based on the information provided by the OP, I will likely construct the model as illustrated. However, if the refe...

4日前 | 1

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How to use the integrating option in a closed-loop PID autotuner?
Here is the difference between stable plants and integrating plants: %% Stable Plant (all eigenvalues have negative real part) ...

5日前 | 0

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I need help for drawing a constraint in Matlab in 2D
Hi @nadia nadi You should replace the p3 line with this: p3 = 3/2*ones(1, numel(x1(1,:))); ... plot(p3, x1(1,:)) clear...

5日前 | 0

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Request for MATLAB Code of Elephant Search Algorithm (ESA)
Hi @Sina The most effective approach is to contact the authors, as the algorithm was originally coded in MATLAB. They would ben...

5日前 | 1

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solve algebric loop error
Hi Shabina, The error suggests that you have incorrectly modeled the dynamic system, resulting in a singularity. This is ...

5日前 | 0

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"Hold Value" of a Fuzzy Control while no rule is active
Hi @Daniel If none of the rules is triggered for any output, the defuzzified output value will default to its mean range value,...

8日前 | 0

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Error using type too many output arguments
Possibly syntax error. The strcmpi() function is used to compare strings. So, you need to place the texts in double quotes. %va...

8日前 | 0

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iztrans giving unexpected outputs
Another way is to provide a proof by contradiction. Misprints can happen due to a lack of proofreading. syms n f1 = n*(-1)^...

8日前 | 0

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Liquid Hydrogen Fuel Station
Hi @Shiva Kumar Bairoju Like @Yifeng Tang, I'd also suggest modeling this system using Simscape, as the entire hydrogen refueli...

11日前 | 0

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Incorrect y intercept using fitlm
Extend the line, and you will see the y-intercept at . % Example data (replace with your actual data) xData = [1, 2, 3, 4, 5, ...

12日前 | 0

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Numerical solution to coupled non linear differential equations
Hi @Atharv Although I don't understand your robotic dynamics, but based on your ODEs, I see that is present in the highest ord...

14日前 | 0

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Matlab Dimpulse function documentaion not found
Hi @Md. Ikrama Hossain For your information, the current version of the impulse() function can be applied to both continuous-ti...

14日前 | 0

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how to access variables from simout - simulink simulation running programatically
Try this %% Data sent to Workspace toWksData = out7_1_1.simout; or this toWksData = get(out7_1_1, simout);

15日前 | 0

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can't write "hat", "tilde", "bar" in the title of the figure
I have problem with the GUI in past releases. I usually type out the syntax on the Command Window. title('$\hat{\theta}_{estim}...

15日前 | 0

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How to plot and find zeros of a complex polynomial?
Hi @simran I am unsure whether a symbolic approach exists. However, to use the fsolve() function, you need to provide initial g...

15日前 | 0

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Fuel cell system efficiency increasing at increasing altitude
Hi @Vyom Desai We are uncertain where to begin in reviewing the code, as all the essential calculative steps for determining sy...

15日前 | 0

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find the minimum of polynomial.
For a two-degree polynomial (quadratic) in the form of "y = ax^2 + bx + c", the formula to find the minimum value is: min = c - ...

16日前 | 0

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Simulink summing block - how to get negative input at the top of the summing block?
Hi @Kenny Enter this:

16日前 | 1

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How to use the magicformula as a MATLAB function in simulink
There are two versions of the 'Magic' formulas. Can you mathematically derive from their outputs? If so, you can write the der...

16日前 | 0

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Finding the points where Bessel functions are equivalent
Hi @Matthew I revisited your approach using vpasolve(), but I provided an initial guess that is close to the solution, as illus...

16日前 | 0

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Finding the points where Bessel functions are equivalent
Hi @Matthew You might consider approaching the problem as finding the minimum point of a convex function. I have used both ga()...

17日前 | 0

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How to find the Linear Analysis Tool
Most likely because you haven't installed the Simulink® Control Design™ tool/software.

17日前 | 0

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Simulink Threshold with action
Naturally, I would expect that the input signal evolves over time and that the thermostat-like controller performs a switching a...

18日前 | 0

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