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how to export two mat.files into a single excel sheet?
Read all your files using load Write all the data using writematrix

oltre 4 anni fa | 0

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Plotting letter "D" on 3D space
3D letter D r = [1 1.5 1.5 1 1]; % radius of a circles t = [-20:10:200 -20]'*pi/180; % closed contour [T...

oltre 4 anni fa | 0

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How to restart a for loop when specific condition is met?
Place for loop inside while loop k = 0; while k < 5 for i = 1:10 if i > 5 k = k + 1; b...

oltre 4 anni fa | 1

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extracting sub matrix from a cell array
Try data1 = data{1}(:,3:8)

oltre 4 anni fa | 1

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how can I plot a matrix against two other ones? (need to a matrix 3d plotting )
Use surf [x,y,z] = peaks(30); h = surf(x,y,z); for i = 1:20 z = z + 0.5*rand(30); set(h,'zdata',z) pause(0.5) ...

oltre 4 anni fa | 0

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Finding the intersection points between two curves
I'd try fsolve for solving Read help carefully: fplot(f,[0 10])

oltre 4 anni fa | 1

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isosurface with wall thickness
What abouy simply to make thicker a lines? [x,y,z] = peaks(30); surf(x,y,z,'linewidth',3)

oltre 4 anni fa | 0

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how do i continuously calculate an output with an increasing input of angles ?
You need to make wi vector the same size as wj and wk wi = [-w_n+theta*0 0 0]; % i component of W

oltre 4 anni fa | 0

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How to get the curvature of a meshed surface?
Here are some ideas: Simple way: Precise way:

oltre 4 anni fa | 1

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Change the value of independent variables to solve the dependent variable equation
Use function handle x = 0:.1:10; f = @(a) sin(a*x); plot(x,f(2),'r') line(x,f(5))

oltre 4 anni fa | 0

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Detecting circles in noisy images with high intensity variations (must work for all cases)
Is the circle the only figure of closed form? A0 = imread('Sem Título.png'); A1 = im2bw(A0); A2 = imdilate(A1,ones(10)); ...

oltre 4 anni fa | 0

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Detecting black blob (mouse) in .tif frames
Here is the siple script that does the job A0 = imread('img1.png'); A1 = im2bw(A0,0.2); montage({A0 A1})

oltre 4 anni fa | 0

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Plot lines from FEM (PDE) stress vectors
% generata data n = 20; % number of points x = rand(20,1); y = rand(20,1); u = rand(20,1); v = rand...

oltre 4 anni fa | 0

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Can this loop containing different indices be vectorized using implicit expansion (or otherwise)?
Simply remove keywords for and end. Don't forget about element wise operator (dot)

oltre 4 anni fa | 0

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Plot a moving wheel in the 3D space
% create model t = linspace(0,2*pi,10); [x,y] = pol2cart(t,1); X = [y*0;y*0;y*0+2;y*0+2]; Y = [y*0;y;y;y*0]; Z = [x*0;x...

oltre 4 anni fa | 0

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How to Draw an ellipsoid between two 3d coordinates
Use rotate to rotate the ellipsoid

oltre 4 anni fa | 0

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FEM : plotting stress field in each T3 element
Here is an example: [x,y] = meshgrid(-2:0.2:2); % x,y range z = x.^2+y.^2-4; % z value h0 ...

oltre 4 anni fa | 0

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Specifying condition criteria for while loop iteration
Did you try to assume the sign of the function value? Derivative can be positive and negative regardless of the value Maybe s...

oltre 4 anni fa | 0

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How to get the volume and surface area of separated isosurfaces
Use bwlabel to separate each blob

oltre 4 anni fa | 0

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How to find opposing triangle pairs in triangulated objects?
Here is an idea or finding neigbour points; % some data x0 = rand(40,1); y0 = rand(40,1); s1 = max(max(x0)-min(x0),max(y...

oltre 4 anni fa | 0

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vector of line chart objects returned by plot - problem with modifying markers,...
Try this x = 0:10; y = sin(x); h(1) = plot(x,y,'r'); h(2) = line(x,y+.5); set(h(2),'marker','.')

oltre 4 anni fa | 0

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maps and isolines on the map of the continents
What about this? t = 0:0.02:2*pi; % angle r = 1 + 0.1*cos(10*t); % radius [x0,y0] = pol2cart(t,r); % calcu...

oltre 4 anni fa | 0

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Solve a complex differential equation over different intervals
Here are some notes: there is no need of creating special mesh. You have 3d order diff equation so you need 3 yinit yinit = [p...

oltre 4 anni fa | 0

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Transform a Numpy array of a mask
Assume A is your 3D matrix (1024x1024x3) A1 = A(:,:,1); % extract first matrix

oltre 4 anni fa | 0

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Extracting points from polyshape
See this link about curve interpolation: LINK Saving the data as a picture is a good idea too: try print x = 0:20; y = sin(x)...

oltre 4 anni fa | 1

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How to create membership functions matlab in triangular form?
Use sine wave x = 0:pi/2:20; y = sin(x); plot(x,y)

quasi 5 anni fa | 0

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Draw arc with specified angle difference
Wha about this representation? s = load('data.mat'); t = linspace(0,1,20)*pi/180; % angle array [X,Y,Z] = deal( ze...

quasi 5 anni fa | 0

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How to show two axis on a plot only where i want them
try this yticks h = plot(0:10,sin(0:10)); yy = 0:0.2:1; [x,y] = ndgrid([0 10],yy); line(x,y) yticks(yy)

quasi 5 anni fa | 0

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Volume of a solid of revolution for a cross section by points
Looks like simple ellipsoid. Try alphaShape n1 = 50; % circle points n2 = 10; % number of circles [x,...

quasi 5 anni fa | 1

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Generate distinct geometric shapes by using radius ?
Here is ax example t = linspace(0,2*pi,4); % triangle [x,y] = pol2cart(t,30); % cartesian coordinates % move tria...

quasi 5 anni fa | 0