Community Profile # Sam Chak

Last seen: Today Active since 2020

#### Statistics

• • • • • • #### Content Feed

View by

Fit a spline function to a set of data points
Hi @Deepa Maheshvare Thought you want the 'spline'? Is there a reason to use the 'linear' method? x = [0, 4, 6, 10, 15, 20];...

environ 13 heures ago | 0

How to represent a curve with straight line segments?
Hi @Luis Eduardo Pacheco González Just wondering if you want to display a smooth sinusoidal curve like this? Or, if you are as...

environ 22 heures ago | 0

How do I plot this piecewise function?
Hi @Zac Because you mispelled 'piecwise'? Anyhow, you can try using one of these methods: t = -3:1e-3:5; %% Method 1 x = ...

environ 22 heures ago | 1

| accepted

MPC toolbox: implementation of default cost function
Hi @Renate There shoud be a file called mpc_costcomputation. Please check if this is what you are looking for. edit mpc_costco...

environ 23 heures ago | 0

| accepted

How to utilize dropout to an anfis in MatLab
Hi @Chengxiang Perhaps you can copy the source code from here edit anfis and then paste the anfis code to a new script, where...

1 jour ago | 0

Can anyone please help me in plot of detaec' and taln. In this Iam getting error Error: Invalid expression. When calling a function or indexing a variable, use parentheses. Ot
Hi @Nudrat Sufiyan From your parameters, ThisTerm returns a vector of very small values, because of your chosen value in p. If...

1 jour ago | 0

| accepted

Build expert system in Matlab
Hi @Sarah Since you now have the idea how to create the rules, then you can build the Expert system.

1 jour ago | 0

ODE45: Solving a system of ODEs, except one of the equations changes based on certain parameters. How can I code this?
@Josh Ciesar Assuming that the right direction of the piston is defined by , then this graph shows exactly what you described. ...

3 jours ago | 0

bode diagram of the quarter car
Hi @Federico Paolucci Say the car model is given by . Then you can use the bode() function. omega = 1; zeta = 0.125/8; s = ...

3 jours ago | 0

square wave not "limited"
@Federico Paolucci Doesn't seem to have any issue. t = linspace(0, 3*pi, 3001)'; f = 2; duty = 50; x = 0.03*square...

3 jours ago | 1

how to only plot a certain area of an existing plot
Hi @rman Generally, this imcrop() command is used to crop image, but it can only crop rectangular shape. To crop a circular sh...

4 jours ago | 0

How can I output the bode plot of a closed control circuit in simulink?
Hi @3a4 In Calculus, we learned Laplace Transform as a strategy for resolving linear differential equation. Applying Laplace ...

4 jours ago | 0

| accepted

Math equation for MFCC bit rate

4 jours ago | 0

Please I am working on gait planning but I hwve to determine the position angles
@Eric Andoh Perhaps you can try fitting that using the Sum of Sines Model. https://www.mathworks.com/help/curvefit/sum-of-sine...

4 jours ago | 0

| accepted

Recover the best individual of each population in GA
Yes, @Jaime Trivino, it is possible according to this section. state.Score % gives you the scores of the current population...

4 jours ago | 0

the error "The function values at the interval endpoints must differ in sign" + fzero
Hi @Mohamed Adam The function values between the endpoints in this interval x_int have the same sign. If they have different si...

4 jours ago | 0

Simulink model of RLC circuit (2nd order differential equations)
Hi @Tech The first impression is that the singularity might be caused by the "Division by zero" issue. Looking at your differe...

5 jours ago | 1

| accepted

How can i solve this cost function?
Hi @Volcano I converted the matrix equation into a scalar equation. Since there is no constraint, fminunc() is used and the loc...

5 jours ago | 1

How can I solve this second order equation?
@Shada ahmed This is not exactly the equation given, but it should give you the idea of ''visualizing' the relationship between...

5 jours ago | 0

Design 2nd order band Pass filter on MATLAB using any windowing technique , then find magnitude and phase response.
Hi @Razzaq Maybe it looks like this: Flo = 5e3; % low cutoff, (rad/s) Fhi = 10e3; % high cutoff R1 ...

5 jours ago | 1

Too Many Input Arguments - I am new to matlab and not sure how to solve this
Try fixing these lines function dhdt = thesis(t, h) dhdt = x1*(K1*t-(Vsto*fPr));

5 jours ago | 1

| accepted

Dear researchers, how can can I simulate nonlinear disturbance observer for UAV on Simulink?
Hi @ALABA PHILIP OPAYEMI As you didn't provide sufficient explanations for the problem and I don't know what it is, so I just i...

6 jours ago | 1

| accepted

Simulating linear systems with nonuniform time vector
Hi @Paolo Rapisarda I think you can possibly use the 1-D data interpolation technique, interp1() function at certain intervals ...

6 jours ago | 1

| accepted

Find Intersection between curves
Hi @Anfal AlShehhi I think the script shared File Exchange works. However, if you want something mathematically simple to under...

6 jours ago | 0

Efficiently handle nonlinear models in Matlab (not Simulink)
Hi @Moritz Sigg For non-stiff nonlinear models, the ode45() is the general way of simulating them, and the nonlinear model is t...

6 jours ago | 1

Finding Kp,Ti,Td with PID tuner
Hi @Esin Derin, Kind of remember seeing a similar question few days ago. Probably your classmate. Anyway, this is how you can p...

6 jours ago | 0

Model of two differential equations of RLC circuit (Simulink)
Hi @Techie, I have requested that the differential equations to be provided, but you seemed to overlook the message. So, I'm un...

7 jours ago | 0

| accepted

hybrid power system design
Hi @Tanvir Ibn Touhid Have you managed you to build the hybrid system from the suggestions and examples given here? https://ww...

7 jours ago | 0