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savitha muthanna


Last seen: 12 months ago |  Active since 2021

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How do I plot a 64x64x64 matrix?
Hi I have a g_val a 64x64x64 matrix. I want to plot it. I though of using mesh. But, I dont know how to obtain the values of ...

3 years ago | 1 answer | 0

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How do I plot the Hamiltonian (phase plot) of a 2d system
Hi I have the Hamiltonian H(p,q). Both p and q are two dimensional arrays of size say (2,N). How do I plot q vs p? (p is deriva...

3 years ago | 1 answer | 0

1

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Plotting results of fft2 with frequencies in the x and y axes
I have the results of the position and momenta of particles, in the matrix y1, from (1:N,1:N) for positions and (1:N,N:2N) of mo...

3 years ago | 0 answers | 0

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Question about taking fft of a set of real values, laying positive values of the vector, followed by 0, followed by negative values
I have the 1-dimensional FPU problem, and I have the following code: YX(IT,1:N+1)=[0 Y(IT,1:N )]; sXF(IT,:)=imag(fft([YX(IT,1...

3 years ago | 0 answers | 0

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How do I plot a 3-d matrix.( error with surf)
I have a 321x60x120 matrix. The matrix has positive and negative float values. I would like to plot it. I tried surf. I get an ...

3 years ago | 1 answer | 0

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Question


How to preserve 2-d initial conditions after passing it into ode45?
Hi, I pass 2d initial conditions, but ode45 linearizes it and makes the matrix into a 1-d array. How do I ensure it is handled ...

3 years ago | 1 answer | 0

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