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nado


Last seen: 2 days ago |  Active since 2022

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stopping criteria for particle swarm optimization algorithm
Hello everyone, I am running an optimization problem using particle swarm algorithm pso). However, i have a problem related to ...

1 month ago | 0 answers | 0

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Question


getting symbolic vector when using coeffs function to extract some coeffs
Hello everyone, Hore you are doing well. I am using the symbolic toolbox in MATLAB R2021a. I am interested in the coefficient ...

12 months ago | 0 answers | 0

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answers

Question


solve the mass spring system where the mass matrix depends explicitly on time
Hello everyone, I was wondering how to solve a system of two ODEs where the mass matrix is time dependent. The system of differ...

1 year ago | 1 answer | 0

1

answer

Question


how ode solver works
Hello everyone, I am looking for knowing or displaying time step in ode solver. Therefore, I ran through a lot of questions ask...

1 year ago | 2 answers | 0

2

answers

Question


error when calling .dll function
Hi everyone, I am trying to call a .dll file from MATLAB. However, i obtained the following error and MATLAB closes suddenly. ...

1 year ago | 1 answer | 0

1

answer

Question


Error in interp1 (line 186) F = griddedInterpolant(X,V,method);
Hello everyone, I am using interp1 function, in MATLAB R2015a, to interpolate lift and drag coefficients. These coefficients ar...

1 year ago | 1 answer | 0

1

answer

Question


how to load files which are listed in a cell array
hello everyone, I am doing aerodynamic computations. The blade i'm workin on is composed of several airfoils. The airfoils da...

1 year ago | 1 answer | 0

1

answer

Question


matlab does not plot the time series
Hello everyone, I am trying to generate velocity from JONSWAP spectrum.However, when the depth of is higher than 20 m, MATLAB d...

1 year ago | 1 answer | 0

1

answer

Question


Genetic Algorithm and objective function value
Hello everyone, I was doing an optimization using GA (Genetic Algorithm). After nearly one hour and half, i obtained the optimi...

1 year ago | 1 answer | 0

1

answer

Question


time for parameter estimation using ode 45
Hello everyone, I used lsqnonlin to find unknown parameters of an ODE. However, when i run the script, it is taking a long time...

1 year ago | 1 answer | 0

1

answer

Question


MATLAB code to find unknown parameters in ODEs using LM method
Hello, I am trying to write a code for solving system of linear ODE with unknown parameters that need to fit the experimental d...

1 year ago | 0 answers | 0

0

answers

Question


solving a coupled system of differential equations
Hello everyone, I have two differential equations which are coupled. I tried to use ode45 but it doesn't work because the syste...

2 years ago | 1 answer | 0

1

answer