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Domanda


FDTD 1D with scattered field /total field boundary
How to implement total/ scattered field boundary so that there is no reflection on the TF SF boundary due to numerical dispersio...

circa 10 anni fa | 0 risposte | 0

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Domanda


How to generate random purmutation of string matrix ?
I would like to have binary mask matrix of sub-block matrices of 1s and 0s that are random inside the big matrix . The way i am...

circa 10 anni fa | 2 risposte | 0

2

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Domanda


How to add noise to rect fuction (rectangle) ?
How to add noise to the edges of 2D rect function? While all the rest is 1 and 0. So that the lines are not straight but still h...

circa 10 anni fa | 2 risposte | 0

2

risposte

Domanda


How to save jpeg image of data with custom colormap without using a .fig file?
I have large data (2Gb) that I have troubles plotting with pcolor or surf ? How can I save an jpeg image of contour map plot ...

oltre 10 anni fa | 1 risposta | 0

1

risposta

Domanda


How to visualize large data (2Gb) with pcolor or make jpeg ?
How can I plot with pcolor or surf large data ~ 2Gb ? An image like jpeg will be fine too. I can not tell if Matlab complains...

oltre 10 anni fa | 0 risposte | 0

0

risposte

Domanda


How to get diffraction pattern (fft2) from image of double slit(jpeg image)
I would like to obtain the diffraction pattern from double slit. How can I set all blacks to 0 and all white to 1 so that the ...

oltre 10 anni fa | 1 risposta | 0

1

risposta

Domanda


Direct 2D FFT from sinogram. Polar to cartesian grid interpolation in Matlab
down vote favorite In the theory of tomography imaging a sinogram is recorderded, which is series of projections at diffe...

oltre 10 anni fa | 1 risposta | 0

1

risposta

Domanda


FFT beam propagation time and space
I can propagate in space lets say gaussian beam with fft beam propagation method. How one adds time evolution of short pulse...

quasi 11 anni fa | 0 risposte | 0

0

risposte

Domanda


How to plot projections of plot3(X,Y,Z) on same 3D graph
How can I plot on same 3D graph of plot3, the projections on XY and so on. X Y Z are vectors similar to the matlab example ht...

quasi 11 anni fa | 1 risposta | 1

1

risposta

Domanda


Numerical integration. Integral depends on its previous path.
I would like to solve numerically an integral than depends on its previous path. Integral 7.14 from the attached file. Are t...

quasi 11 anni fa | 0 risposte | 0

0

risposte

Domanda


How to compute sqrt of complex number ?
sqrt(z) , (where z=x+iy a general complex number) will have two solutions. I would like to pick up a solution that lies in the f...

oltre 12 anni fa | 1 risposta | 0

1

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