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3D logaritmic spirals on surface
I have made some progress: function plot_spiral_on_surface() % Curve y = 1/x curve_func = @(x) 1./x; x_min = 1...
12 Monate vor | 0
3D logaritmic spirals on surface
Do you mean like this? I dont quite understand, for example [x, y, z] = logarithmic_spiral_3d() are unused function plot_rotate...
fast ein Jahr vor | 0
Frage
3D logaritmic spirals on surface
I'm attempting to plot twelve equally spaced 3D logaritmic spirals that start from the circumfrence of my surface and then conve...
fast ein Jahr vor | 3 Antworten | 0
3
AntwortenFrage
Calculating the trajectories of several helixes running along the surface of the same cylinder
I'm attempting to write script that plots the trajectories of several helixes that run along the surface of a cylinder I want t...
mehr als ein Jahr vor | 0 Antworten | 0
0
AntwortenFrage
Fill empty cylinders in binary volume
Hello I'm trying to fill empty cylinders in a binary 3d volume.: load cylinders.mat J = bwmorph3(OutputBinaryImage2,'fill...
mehr als ein Jahr vor | 1 Antwort | 0
1
AntwortFrage
Magnetic forces and torques of a system of magnets in when B fields are known
Hello, I'm attempting to calculate the forces and torques experiences by a system of magnets in a magnetic field set up by anoth...
mehr als ein Jahr vor | 1 Antwort | 0
1
AntwortFrage
Rotating a point cloud fails
Hello, I'm attempting a rotate a point cloud that is defined in the attachment 'point_cloud.mat'. The points are 32 points equi...
mehr als ein Jahr vor | 1 Antwort | 0
1
AntwortFrage
Numerical answer to Partial derivative of Hopfield-style Energy in symbolic expression
Hello, I'm implementing a gradient descent optimizer that uses Hopfield-style energy as function, the hopfield-style energy i...
mehr als ein Jahr vor | 1 Antwort | 0
1
AntwortFrage
Eigenvectors of a 3D eigenvalue matrices
I have three matrices called Lambda1, Lambda2 and Lambda3. The size of each matrix is 512x512x220. Lambda1 contains eigenvalues ...
etwa 2 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Need help designing stopband filter
Hello, I'm trying to design a stopband filter that can remove spikes at 1.294 Hz and 3.101 Hz My data matrix 64x64x64x2960, w...
etwa 2 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Bandstop filtering fMRI data did not work
I have a 64*64*64*2960 matrix of fmri data, where 64*64*64 are the spatial dimensions of the data and 2960 is the temporal dimen...
etwa 2 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Stopband filter with multiple stopbands
Hello, I have a fMRI signal sampled at 10 Hz and I need to create a stopband filter with three stop bands This examle looks ...
etwa 3 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Stem plot so that markers are not in the axis
How can I edit this plot so that the markers highlighted by red rectangles are not in the axis`? intrinsic_noise_xy_mat =...
mehr als 3 Jahre vor | 1 Antwort | 0
1
AntwortCalculate 2 opposing fibonacci spirals from every point of a circle circumfrence
clear all theta = 0:pi/36:2*pi; phi = 0.5*(1+sqrt(5)); r = phi.^(2*theta/pi); r_1=phi.^(2*(-theta)/pi); testi = exp(1i*thet...
mehr als 3 Jahre vor | 0
| akzeptiert
Calculate 2 opposing fibonacci spirals from every point of a circle circumfrence
theta = 0:pi/30:2*pi; phi = 0.5*(1+sqrt(5)); r = phi.^(2*theta/pi); x = r.*cos(theta); y = r.*sin(theta); figure(1);hold on...
mehr als 3 Jahre vor | 0
Calculate 2 opposing fibonacci spirals from every point of a circle circumfrence
Like this
mehr als 3 Jahre vor | 0
Frage
Calculate 2 opposing fibonacci spirals from every point of a circle circumfrence
phi = 0.5*(1+sqrt(5)); % golden ratio r = phi.^(2*theta/pi); % fibonacci spiral polarplot(-theta,r,theta,r,theta,-r,-theta,-...
mehr als 3 Jahre vor | 3 Antworten | 0
3
AntwortenFrage
Temporary variable must be set inside parfor before it is used
I'm my code I get this error "Temporary variable must be set inside parfor before it is used" I don't understand why it is no...
mehr als 3 Jahre vor | 1 Antwort | 0
1
AntwortFrage
I need help with parpool and optimizing recources for image reconstruction, running matlab with batch script
Im running an image reconstruction (1798 head volumes) script on a computation cluster These are my recources Nodes: 1 Mem pe...
mehr als 3 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Why is the same variable displayed colored and uncolored?
The struct D is displayed with green color until it suddenly (row 562) loses its green color and things go wrong after that. ...
mehr als 3 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Re-arrange matrix row elements so that a specific condition is fulfilled
Say we have matrix A = 1 2 3 1 3 5 1 2 4 2 3 7 The task is the re-arrange the row elements so that in no row 2 elements...
fast 5 Jahre vor | 0 Antworten | 0
0
AntwortenFrage
For every matrix row find rows within the same matrix that have more than one common element in same index below the row
Let's say I have matrix A, every row contains three values and for every row of the matrix A need to find other rows that have m...
fast 5 Jahre vor | 2 Antworten | 0
2
AntwortenFrage
Shuffle matrix rows so that common elements are in completely different order than in a said row
Say we have a matrix row 'current_row' 1 2 3 and a matrix A 1 2 5 1 3 6 2 4 3 The task is to re-arrange matrix A so that...
fast 5 Jahre vor | 2 Antworten | 1
2
AntwortenFrage
Find rows in matrix A that contain value x, find() fails
I have a 472944 x 5 matrix and I need to locate rows have at least a single occurence of value x=0 in their four first (1:4) ele...
fast 5 Jahre vor | 1 Antwort | 0
1
AntwortFrage
Find matrix rows that have 3 common values, store the rows and the values
Suppose I have a 500000x5 matrix and for each row I need to find rows that have 3 common elements within the first 4 elements of...
fast 5 Jahre vor | 1 Antwort | 1