Answered

plot smooth curve through discreet points

xx = linspace(min(x),max(x),100); yy = spline(x,y,xx); figure,plot(x,y,'o',xx,yy)

plot smooth curve through discreet points

xx = linspace(min(x),max(x),100); yy = spline(x,y,xx); figure,plot(x,y,'o',xx,yy)

8 years ago | 2

Answered

Solving an integral with variable as upper limit and plotting the solution

You can use cumsum or cumtrapz.

Solving an integral with variable as upper limit and plotting the solution

You can use cumsum or cumtrapz.

8 years ago | 0

Answered

what does this mean?

hblms is a struct array ( http://uk.mathworks.com/help/matlab/ref/struct.html ) Set its variable WeightsOutputPort to false

what does this mean?

hblms is a struct array ( http://uk.mathworks.com/help/matlab/ref/struct.html ) Set its variable WeightsOutputPort to false

8 years ago | 1

| accepted

Answered

Determing intermediate points in 3D mesh plot

If the points are on regular grid, you can use interp2: interp2(x,y,z,x0,y0,'cubic') Otherwise, you can scatteredInt...

Determing intermediate points in 3D mesh plot

If the points are on regular grid, you can use interp2: interp2(x,y,z,x0,y0,'cubic') Otherwise, you can scatteredInt...

8 years ago | 0

| accepted

Answered

Why is my surface not fitting the data points smoothly?

You can try to plot your surface with trisurf: [x,y]=meshgrid(1:15,1:15); tri = delaunay(x,y); z = peaks(15)...

Why is my surface not fitting the data points smoothly?

You can try to plot your surface with trisurf: [x,y]=meshgrid(1:15,1:15); tri = delaunay(x,y); z = peaks(15)...

8 years ago | 0

Answered

Stitching sub images to reconstruct full image

What about using mat2cell and cell2mat? It should be much easier.

Stitching sub images to reconstruct full image

What about using mat2cell and cell2mat? It should be much easier.

8 years ago | 0

Answered

surf plot- Z must be a matrix, not a scalar or vector.

The surf function requires the z values to be a matrix. If you have column data you can use trisurf, instead: tri = delaun...

surf plot- Z must be a matrix, not a scalar or vector.

The surf function requires the z values to be a matrix. If you have column data you can use trisurf, instead: tri = delaun...

8 years ago | 2

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Delaunay special constraints not being part of the triangulation

Hello, I'm trying to create a constrained delaunay triangulation of a set of points: in particular, I don't wont triangles to i...

8 years ago | 1 answer | 1

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Select unique couples from two vectors (?)

Hello! I have a code I would like to perform withouth for loop, but I don't know how to describe it, so I'll show you with an...

9 years ago | 1 answer | 0

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Plot MarkerSize units normalized

Hello! I need to plot a lot of circle of a precise size every small time-step. I was using a for with plot rcos-rsin, but it wa...

9 years ago | 2 answers | 1

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Mean of matrix by columns

Hello! I'm looking for a function to get the mean of two (or more) columns: A = 1 2 3 4 5 6 7 ...

9 years ago | 3 answers | 0

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Fill a matrix with same values

Hi! I have a matrix like this: [ 1 8 9 7 7 4] [ 0 0 0 0 0 0] [ 0 0 0 0 0 0] [ 9 8 6 5 5 1] [ 0 0 0 0 0 0]...

10 years ago | 4 answers | 0

Answered

Display imagesc within a shape

The problem is that my matrix is rectangular shape, but it refers to a trapezoidal shape, so I should *reshape* the content of t...

Display imagesc within a shape

The problem is that my matrix is rectangular shape, but it refers to a trapezoidal shape, so I should *reshape* the content of t...

10 years ago | 0

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Display imagesc within a shape

Hi! I have a matrix of values that refer to the stress on a trapezoidal shape. Now, I would like to show the intensity of the ...

10 years ago | 2 answers | 0

Answered

¿How to order 'x' numbers in ascending or descending?

If you don't want to use sort (may be for practicing?), here is a simple alternative: a = round(rand(1, 10)*20) tmp = a;...

¿How to order 'x' numbers in ascending or descending?

If you don't want to use sort (may be for practicing?), here is a simple alternative: a = round(rand(1, 10)*20) tmp = a;...

10 years ago | 0

| accepted

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Determination of a curve with a given curvature

Hello! I have a set of points and I have to calculate the curvature. To find the curvature I made this simple code, which solv...

10 years ago | 0 answers | 0

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Parametric spline interpolation for airfoil

Hi! I have a set of points from an airfoil: x = [0 ... 1] yUp = [ ... ] Leading edge -> trailing edge yLow = [ ... ]...

10 years ago | 0 answers | 0

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Concatenate vector in a 3d matrix

Hi. I have these vectors: a = [11 12 13 14]; b = [21 22 23 24]; c = [31 32 33 34]; d = [41 42 43 44]; I want to concaten...

11 years ago | 1 answer | 0

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Add a row to a matrix where find==1

Hello! I've a matrix A and a vector f: A = 9 6 5 9 10 9 8 7 1 2 9 ...

11 years ago | 1 answer | 0

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Find a vector in a structure

Hello! I've this structure: >> vortex(:).points ans = 1 2 3 4 5 6 7 8 9 ...

11 years ago | 2 answers | 0

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parfor question

Hello. I'm working with a very long for-cycle (50x200x200 matrix) and I'd like to use parfor to reduce calculating time. I'm w...

11 years ago | 1 answer | 0