Carlos Felipe Rengifo
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Carlos F. Rengifo received his electrical engineering and master's degrees on automatic control degrees from "Del Valle" university in Colombia. In 2007 and 2010, he obtained the degrees of master and Ph.D. in Robotics and Automation from the Ecole Centrale de Nantes in France. Currently, he is working with "Del Cauca" university (Colombia) as a professor. His research includes modeling and control of robots and biomechanical systems.
C, R, MATLAB, Arduino
Spoken Languages:
English, French, Spanish
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allmargin gives incorrect answers for some discrete time systems
Hi Paul Thank you for your valuable comments. They helped me to understand the problem. Yesterday, I reported the bug to Math...
1 year ago | 0
Question
allmargin gives incorrect answers for some discrete time systems
Hi, Consider the following code: s = tf("s"); gs = 1/(s*(s+1)); gz = c2d(gs, 4, "zoh"); allmargin(gz) gclz = zpk(feedback(...
1 year ago | 2 answers | 0
2
answersMinimum value of select cell elements?
Hi, I propose you the following solution: % The 20x50 cell array is transformed into a 20x(10000) matrix. elems ...
7 years ago | 0
How can I remove a set of given peaks such as the peaks located at (7.9000,0.9989) and (14.1000, 0.9993) in the following code? I want to be able to do this even when the plot expands and has many more peaks.
Hi, it can be done by replacing the undesired peaks by nan values. In your case, it will be: % The first two lines of you...
7 years ago | 0
Ode45 would not converge with the following statement
Hi, I guess the "y" vector contains a NaN, and as a consequence "C" contains also NaNs. This happen even if B is equal to zero (...
7 years ago | 2
| accepted
I would like to get an cell array output by matching 2 cell arrays and returning with corresponding matched values from other cell array.
Please, let me know if the following sentence solves your problem: B(ismember(B(:,1),A),:)
7 years ago | 0
| accepted
ODE to answer projectile question
I hope this will help you: clc; clear variables; close all; % Parameters of the model S = rand(1); ...
7 years ago | 0
Interp1 wrong answer
Instead of the function interp1, you could use this sentence: yi = polyval(polyfit(X,Y,1),xi) In Matlab '9.4.0.885841 (R...
7 years ago | 0
Problem with Matlab solver
Hi, You can solve the equation without using symbolic math. The answer can be find in a numerical way: H = @(w) 0.1/(1 - 0...
7 years ago | 0
Why do I get different answers for inverse?
The variables "xs" and "x2s" contain equivalent mathematical expressions. The variable "xs" is a simplified version of the varia...
7 years ago | 2
| accepted
