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Better “centerpoint” than centroid of a concave polygon
Here is the simplest solution for this task x = rand(4,1); y = rand(4,1); x = [x; x(1)]; y = [y; y(1)]; ii = 2; % corne...

etwa 6 Jahre vor | 0

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readmatrix produces NaN values after parsing a .txt file
See this solution I don't have readmatrix. I tried importdata A = importdata('matrixA.txt'); data = A.data; find( isnan(data...

etwa 6 Jahre vor | 3

| akzeptiert

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Solve Finite Element Analysis equation
Here are some of my thoughts

etwa 6 Jahre vor | 1

| akzeptiert

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Solve set of inequalities
Here is what i invented clc,clear cla A = -203; B = 12189; DAC05 = 206; DAC45 = 1864; gamma = 2; c0 = linspace(-1e3,1e...

etwa 6 Jahre vor | 1

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Plotting Solution for Different Times: Hyperbolic PDE
I used this difference scheme results Do you have a picture of expected result?

etwa 6 Jahre vor | 0

Beantwortet
Draw triangle on 3d mesh
What about this? function main opengl software h = surf(sphere(20)); axis vis3d set([h gcf],'hittest','off') % не зн...

etwa 6 Jahre vor | 0

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how to fix the brightness of a series of 3d isosurface images
It's cause by these Example [x,y,z,v] = flow; isosurface(x,y,z,v,-3); isosurface(x,y,z,v,-1); caxis([-4 0]) view(3) axi...

etwa 6 Jahre vor | 0

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finding coordinate based on distances
Here is an idea Red numbers are distances as following Black numbers are number of points Tell me what do you think

etwa 6 Jahre vor | 1

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Split Volume Along 2D Surface
See this madness clc,clear [x1,y1,z1] = meshgrid(1:10); % volume boundaries [x2,y2] = meshgrid(1:0.5:10); % su...

etwa 6 Jahre vor | 1

Beantwortet
Collecting and rearranging excel data
Try this clc,clear A = [] [s1,info1] = xlsfinfo('Season 2017.xls'); for i = 1:numel(info1) A1 = readtable('Season 201...

etwa 6 Jahre vor | 0

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Generate a mesh with unequal steps based on a density function
What about this? x = (0:.02:2)'; y = 5*sin(2*pi*x).*x; t = [0; cumsum(hypot(diff(x),diff(y)))]; t1 = linspace(t(1),t(end))...

etwa 6 Jahre vor | 0

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First time using imagesc and it seems to be completely changing my plot? Help!
You Fxy matrix should be 2D. No for loop is needed [x,y] = pol2cart(angle,radius); [Fxy,~] = mehsgrid(F,radius); imagesc(x,y,...

etwa 6 Jahre vor | 0

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Why is ODE15s ignoring my boundary conditions?
I rewrote your equations as following I used this difference scheme And here is the success i reached

etwa 6 Jahre vor | 0

Beantwortet
Unable to perform assignment because the indices on the left side are not compatible with the size of the right side.
I found the solution

etwa 6 Jahre vor | 0

Beantwortet
How to link subgroup data points together in a plot?
What about this? hold on A1 = unique(A(:,1)); cmark = {'o' '*' '.'}; for i = 1:numel(A1) ix = A(:,1)==A1(i); h(i) ...

etwa 6 Jahre vor | 0

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Beantwortet
Finding maximum axial slice location from 3D binary label
Use find to find all values Use ind2sub to convert indices to i,j,k (x,y,z) ix = find(V(:)); % find nonzero...

etwa 6 Jahre vor | 1

Beantwortet
How to add Joint PDF Density Contour?
What about this witty trick? load seamount n = 20; x1 = (x-min(x))/(max(x)-min(x))*(n-1)+1; y1 = (y-min(y))/(max(y)-min(y)...

etwa 6 Jahre vor | 0

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Optimise creation of matern 3/2 covariance matrix
Try this [X,Y] = meshgrid(1:n); K = (1+sqrt(3)*abs(X-Y)/tau).*exp(-sqrt(3)*abs(X-Y)/tau); K = (K>1e-9).*K; read this

etwa 6 Jahre vor | 0

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Text in front of the mesh in 3D figure plot
What about this? clc,clear x = rand(1,100); y = rand(1,100); z = rand(1,100); x0 = mean(x); y0 = mean(y); x1 = x-x0; y...

etwa 6 Jahre vor | 0

Beantwortet
finding dense location and define centeriod of the each dense location
Here is simple but coarse (maybe not precise method) Fill matrix Connect pixels Thin l...

etwa 6 Jahre vor | 0

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Beantwortet
High Performance Interpolation of 3D grid data
Here is an example. It's just a surface in 3D. I rotated X and Y and found new Z See script and try to calculate value of point...

etwa 6 Jahre vor | 0

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projectile motion in matlab
See this clc,clear a = 60; v = 10; x = 0; y = 0; vx = v*cosd(a); vy = v*sind(a); g = 9.81; dt = 0.02; % plot([5 5],[...

etwa 6 Jahre vor | 0

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split matrix into multiple matrices with variable number of rows according to value of a column
Here is how i see the solution S = importdata('Bspectrumgloei.xlsx'); A = S.data; ind = [ 20 54 78 98 132 ]; A1 = cell(5,1);...

etwa 6 Jahre vor | 0

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Intercept of two polynomial of degree 2 graphs
Try this (not tested)

etwa 6 Jahre vor | 0

Beantwortet
Plot the graphs of the following parametric equations using ezplot
See this madness syms r t r = sin(t/2); x = r*cos(t); y = r*sin(t); ezplot(x,y,[0 2*pi])

etwa 6 Jahre vor | 0

Beantwortet
How to use the mean colour of each segment of an image and display it in segmentation
Can you label each region maybe with bwlabel? Then you can just loop through each region % let 'I' be your color image [L,n] ...

etwa 6 Jahre vor | 1

| akzeptiert

Beantwortet
find() returns content of {1×0 double} cell array
What about simple for loops? ffile = {'\\path\143' '\\path\204' '\\path\450'}; RAW = {'450' '143'}; allind = zeros(size(RAW)...

etwa 6 Jahre vor | 1

| akzeptiert

Beantwortet
How to get the position of nodes (x and y coordinates) stored in a logical array?
You can use get if it's a handler (variable that represent an object (plot or somerthing)) CPP is array of logical type CPP(r,...

etwa 6 Jahre vor | 0

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Beantwortet
How to plot a curve using angles?
Try cumsum ds = rand(1,10); % length of each segment a = rand(1,10)*90; % angle of each segment dx = sind(a).*d...

etwa 6 Jahre vor | 1

| akzeptiert

Beantwortet
using shooting method for coupled ode
Thank you more readable code Here are some mistakes Some note: Shouldn't last equations be like this? What is g? Ther...

etwa 6 Jahre vor | 1

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