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How to superimpose figures obtained from different simulations?
Hi! I would like to superimpose different figures that I have saved from different simulations (results from solving a problem ...

mer än 9 år ago | 2 answers | 0

2

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how to plot a spectogram changing the time axis by the input frequency axis of the excitation signal instead?
Hi I want to plot a spectrogram of a measured Signal, the Response of a System to a sweep Signal in a certain frequency range. ...

mer än 9 år ago | 0 answers | 0

0

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Question


How can I integrate a discretiyed vector in Matlab?
Hi, I am wondering how I can integrate a vector with sampled data from a measurement in time Domain. I have the acceleration ve...

mer än 9 år ago | 0 answers | 0

0

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Question


How to interpolate a set of complex numbers in Matlab
Hi! I want to interpolate a set of complex numbers, which correspond to the Fourier coefficients of a signal obtained at a very...

mer än 9 år ago | 1 answer | 0

1

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Question


how can I take a global variable declared in a program, take it in a function, change its value inside the fuction and give it again to the program as global?
Hi! I have the following Problem: I have a variable declared in my program, whose value I want to Change in a function and th...

mer än 9 år ago | 1 answer | 0

1

answer

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How can I do a QRP matrix factorization of a square matrix ?
Hi! I have a Matrix nXn and I would like to do ist QRP factorization. Could anyone please help me? Thank you very much!

mer än 9 år ago | 0 answers | 0

0

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Does anybody know how to include a legend in a figure of three functions with different colours or patterns?
Hi, I am plotting three functions at the same time in order to compare them and I would like to include a legend in this graph...

nästan 10 år ago | 1 answer | 0

1

answer

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Does anybody know how to obtain an adecuate step for finite differences in Matlab?
Hi, I have a vector of dim Nx1,fnl0 which depends on a vector X0 of dim 3Nx1. I would like to obtain the parcial derivatives o...

nästan 10 år ago | 1 answer | 0

1

answer

Question


How can I obtain the derivative of a vector?
Hi, I have solved a system of ODEs with the solver ODE45 , obtaining the vector T and Y, which is a matrix of Nx6; N time point...

nästan 10 år ago | 3 answers | 0

3

answers

Question


How can I solve the convergence problems when solving a nonlinear system of equartions with Newton Rapshon?
Hi, I am trying to solve the following system of equations by Newton Raphson: R=S*X-Fe+Fnl,where S is a matrix,dim 3*NX3*N; X,F...

nästan 10 år ago | 0 answers | 0

0

answers