# RoBoTBoY

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**Content Feed**

Question

How to do normal distribution for same data?

Hello, According with first example from here: https://www.mathworks.com/help/stats/normal-distribution.html I wrote these lin...

4 months ago | 2 answers | 0

### 2

answersQuestion

How to plot and filter some values from a csv file?

Hello, I have some csv files where one column is time and the other is distance. How do I plot these columns and filter out th...

6 months ago | 2 answers | 0

### 2

answersQuestion

How to solve an equation with matrices?

I have these equations below: How to solve these? I know the matrices A, B, Λ, Am, Bm and i want to find the Kx^T and Kr^T

2 years ago | 1 answer | 0

### 1

answerQuestion

How to find the derivative of this Lyapunov function?

Hello! I want to find the derivative of this Lyapunov function with respect to the differentiation parameters e, ΔKx, ΔKr. ...

2 years ago | 1 answer | 0

### 1

answerQuestion

How to put step reference command on Simulink?

Hello!! I want to put a step reference command for changes by 5 degrees every 3 sec on simulink. How to do that? Thanks in a...

2 years ago | 1 answer | 0

### 1

answerQuestion

How to plot the least square method?

Hello! I have these measurements of an experiment where Kp and Kd are the coefficients of PD controller and model displays cri...

2 years ago | 0 answers | 0

### 0

answersQuestion

How to find the equilibrium points of dynamics system?

Hello! I have this scalar dynamic system. How to find the equilibrium points in order to check the stability with two method...

2 years ago | 0 answers | 0

### 0

answersQuestion

coefficients of a difference equation?

Hello everybody! How to find the coefficients of this difference equation in matlab in order to filter a music signal? Tha...

2 years ago | 0 answers | 0

### 0

answersQuestion

Is this signal periodic?

Hello everybody! I have this signal: My question is if this signal is periodic; If yes, how to calculate the period in samp...

2 years ago | 1 answer | 0

### 1

answerQuestion

Trajectory planning for robot manipulator

Hello! I want to do the trajectory planning for a robot manipulator. So how to do that? I have computed by hand the forward ki...

2 years ago | 1 answer | 0

### 1

answerQuestion

How to find the energy of a discrete signal?

I want to find the energy of this signal in rolling windows. Note that the energy of a signal x[n] overlapping by a window w[n...

2 years ago | 1 answer | 0

### 1

answerQuestion

How to normalize a discrete signal?

Hello!! I want to calculate the signal energy in rolling windows, after first normalizing to interval [-1,1]. Firstly, I wrote...

2 years ago | 1 answer | 0

### 1

answerQuestion

Linear filter for echo effect

Hello all! A discrete-time causal filter is described by the following difference equation. A simple linear filter for simul...

2 years ago | 1 answer | 0

### 1

answerQuestion

How to find eigenvectors?

Hello!! I have this matrix: A = -2 0 2 2 -1 5 ...

2 years ago | 4 answers | 2

### 4

answersQuestion

How to find inverse kinematics given D-H parameters?

Hello world! I have these D-H parameters and I want to find the inverse kinematics. I have found the final pose of end-effect...

2 years ago | 1 answer | 0

### 1

answerQuestion

How to find the time and partial derivative?

Hello! I have this: How to represent the above in matlab in order to find the partial derivative w.r.t. q1_dot, that is the ...

2 years ago | 1 answer | 0

### 1

answerQuestion

How can I find the partial derivative w.r.t angles

Good evening! I have this: And I want to know how can I find this with Matlab, w.r.t q1 and q2 in order to verify my r...

2 years ago | 0 answers | 0

### 0

answersHow to perform these discrete signals?

I could not find a solution to what I am asking for. Any help?

2 years ago | 0

Question

How to run this code with some values of k?

Hello! I have this: I run this code: syms t k = 0; x(t) = 3*dirac(t-3*k*pi)+2*dirac(t-3*k*pi-pi)+dirac(t-3*k*pi-2*pi) f ...

2 years ago | 1 answer | 0

### 1

answerQuestion

How to perform these discrete signals?

I have these: , where a=3 How to represent these discrete signals above. In order to find the discrete time fourier transform(...

2 years ago | 2 answers | 0

### 2

answersQuestion

How to find the Fourier transform X(ω)

Hello world! I want to find the fourier transform X(ω) of these continuous signals x(t). Also I want to find the inverse fo...

2 years ago | 1 answer | 0

### 1

answerQuestion

How to find the integral of some values?

Hello community! I have a file on excel with some values which are the output signal. So, I want to find the integral of these ...

2 years ago | 1 answer | 0

### 1

answerQuestion

Inverse kinematics and pseudo-inverse of Jacobians

Hello community! I have these: First, I want to find the inverse kinematics when are only active q1, q2 q4 and q3=q5=q7=0,q6...

3 years ago | 0 answers | 0

### 0

answersQuestion

how to find characteristic equation from state space model?

Hello community! I want to find the characteristic equation from this state space model Also, I want to find a single differ...

3 years ago | 0 answers | 0

### 0

answersQuestion

derivatives of state variables

Dear, I want to find the derivative of this α*x_1+b*x_2+q*abs(x_2)*x_2+r*x_3. Where x_1,x_2,x_3 are state variables from air...

3 years ago | 1 answer | 0