Sam Chak
Statistics
0 Preguntas
750 Respuestas
CLASIFICACIÓN
93
of 271.378
REPUTACIÓN
1.392
CONTRIBUCIONES
0 Preguntas
750 Respuestas
ACEPTACIÓN DE RESPUESTAS
0.00%
VOTOS RECIBIDOS
159
CLASIFICACIÓN
of 18.300
REPUTACIÓN
N/A
EVALUACIÓN MEDIA
0.00
CONTRIBUCIONES
0 Archivos
DESCARGAS
0
ALL TIME DESCARGAS
0
CLASIFICACIÓN
of 119.890
CONTRIBUCIONES
0 Problemas
0 Soluciones
PUNTUACIÓN
0
NÚMERO DE INSIGNIAS
0
CONTRIBUCIONES
0 Publicaciones
CONTRIBUCIONES
0 Público Canales
EVALUACIÓN MEDIA
CONTRIBUCIONES
0 Temas destacados
MEDIA DE ME GUSTA
Contribute at least one answer each month for 12 consecutive months
Awarded to Sam Chak on 02 Oct 2022
Accept 1 answer given by other contributors
Awarded to Sam Chak on 19 Jun 2022
100 of your answers have been accepted
Awarded to Sam Chak on 27 May 2022
Answer 1 question that was unanswered for more than 30 days
Awarded to Sam Chak on 08 Jan 2022
Provide your first answer ever to someone else's question
Awarded to Sam Chak on 31 Jul 2020
Content Feed
Halley's method
Hi @Vivian Ho It is recommended to show your working and efforts in solving the problem. But if you are having trouble, then yo...
alrededor de 11 horas hace | 0
How to use the matlab to predict the properties price given some observations using fuzzy logic (FL)?
Hi @jamal numan Generally, you need to collect data about the past and current state of the Property Prices in a region and its...
alrededor de 12 horas hace | 0
Lyapunov stability analysis function
Hi @Lydia Abigail Garza Coello As far as I know, there is no built-in function.m in MATLAB for directly performing the Lyapunov...
alrededor de 13 horas hace | 0
How to identify negative slope from plot data?
Hi @Michael Tognotti This is just a basic idea for identifying the region of negative slope. Generally, the numerical different...
alrededor de 15 horas hace | 0
How can i calculate the PI controller gains from my plant transfer function
Hi @Mads Olesen Perhaps you can directly insert the PI controller and obtain the closed-loop response. Tune the gains if not go...
1 día hace | 1
| aceptada
Derivative of state '3' is not finite.
Hi @younwook song The system is unstable. It is rather difficult to decipher the dynamics from the displayed block diagram and ...
1 día hace | 0
I want help solving differential equations
Hi @kubel Follow the example in the dsolve() documentation https://www.mathworks.com/help/symbolic/dsolve.html syms x(t) eq...
1 día hace | 0
| aceptada
Plot several solution curves to y'(t) = y(t) - t
Hi @Carla Roos You can create an anonymous function of t and y. fun = @(t, y) y - t; % <--- Type like this % solve f...
2 días hace | 0
| aceptada
How to import my state space Modell into Simulink
Hi @Ann-Christin Schlupek You will need to import the identified model from the MATLAB workspace into Simulink. Follow the step...
2 días hace | 0
Closed-loop parameters identification
Hi @Andrea Carlo Giorgio Gottardini I see. You need the mathematical model to perform tuning on the PID. Since the Simulink mod...
2 días hace | 0
is there any way to train a model to learn a matrix and all variables in it then generate same matrix
Hi @hessam asadi The answer is generally yes, it is possible to train so long as it is a non-singular (invertible) matrix. Fir...
2 días hace | 0
Why the controller block diagram is not working (while tracking the reference and water level in tank 2 at specific level)?
Hi @Sana Mohamed It seems that your equation for causes the level of Tank #2 to dip below 0, thus term sqrt(x(2)) returns an ...
3 días hace | 0
defining state matrix as anonymous function
Hi @Nicole The input should be defined for in order for the anonymous function to work properly in MATLAB. % parameters m ...
3 días hace | 0
2-DOF Damped Unforced System. Finding Natural Frequences/Damping ratios. Receptance Matrix.
Hi @Nikolaj Gatijatullin I don't have sufficient knowledge about System 2 (2-DOF). If you can show how you normally use Mathema...
5 días hace | 0
Plot step response for control signal (u1 u2 ...) in a MIMO system with feedback
Hi @Cesar Adolfo Cruz Vargaya The original plant is a coupled 2nd-order MIMO system. If the desired closed-loop transfer functi...
6 días hace | 0
PID implementation using code
Hi @Sanjeet Kulkarni Wouldn't it be simpler if you obtain the signal directly from the Integrator block, and then feed it into...
8 días hace | 0
Optimizing simulink parameters from matlab code
Hi @Jasmin Falconer Put it another way around, you can fminunc() to directly optimize the gains from the Simulink model and th...
8 días hace | 0
conversion from fmincom to NSGA -II
Hi @basit mujtaba If you have written your own NSGA-II algorithm in a MALTAB function file, for example, called nsga2.m, then y...
8 días hace | 0
Find likelihood from state space with Kalman filter
Hi @Rob Perhaps you are looking for the likelihood() function. help likelihood
8 días hace | 0
| aceptada
Driving force of driven damped harmonic oscillator missing
Hi @Jerry Yeung Basically, there is nothing wrong with your original code. The reason that the spring response is not affected ...
9 días hace | 0
I need cost function for tuning PID controller help me
Hi @Yazeed Ali Not sure what your system is, but I think you can try the one of the simplest cost function probably looks like ...
10 días hace | 0
nonlinear variable state space observer pole placement
Hi @Bernd Pfeifer Long time I didn't solve math puzzles like this one. Generally, you should be able find the analytical soluti...
16 días hace | 2
finding the distance between two points
Hi @Natali Petani You can try the function: pdist2(). https://www.mathworks.com/help/stats/pdist2.html help pdist2
20 días hace | 0
Input Signal from state space model
Hi @Justin You can try using the lsim() function. Search Google/Documentation for details. Example is shown below: A = [ 0 ...
20 días hace | 0
My Simulink Model takes hours to complete 1 second, and I need to run it for 5,000 second. I tried to change the minimum time step, but Matlab keeps giving erros when I do so.
Hi @janna roberts The typical satellite attitude dynamics are not stiff. You can try, but I think changing it to a stiff solver...
21 días hace | 0
How to verify if my system (Z-domain) is stable in MATLAB
Hi @Rafael Most probably because you did a "positive feedback". Try do this impulse(feedback(K*TF, 1)) instead of impulse(f...
21 días hace | 0
How to make the linear function
Aha, I see... If you want to get rid of spikes and want a smooth transition, but not strictly linear, then you can consider addi...
22 días hace | 0
Creating custom Transfer Function with more learnable parameters
*Edit*: This article contains information about creating custom functions for NN. https://www.mathworks.com/help/deeplearnin...
22 días hace | 0
What algorithm to use for collision avoidance of a robot?
Hi @Farzad Torabi I'm unsure. Maybe you intend to tell the robot to "back down" or retract the arm? Conventionally, RRT is an ...
23 días hace | 2
| aceptada
PID for fixed distance
Hi @Andrea Tonelli I think your control design part is okay. But the divergence issue is probably related to the way you setup ...
24 días hace | 0
You can also select a web site from the following list:
Americas
- América Latina (Español)
- Canada (English)
- United States (English)
Europe
- Belgium (English)
- Denmark (English)
- Deutschland (Deutsch)
- España (Español)
- Finland (English)
- France (Français)
- Ireland (English)
- Italia (Italiano)
- Luxembourg (English)
- Netherlands (English)
- Norway (English)
- Österreich (Deutsch)
- Portugal (English)
- Sweden (English)
- Switzerland
- United Kingdom (English)
Asia Pacific
- Australia (English)
- India (English)
- New Zealand (English)
- 中国
- 日本Japanese (日本語)
- 한국Korean (한국어)