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Intersections between two discretised functions
f = @(x) x.^2; x = linspace(-5, 5, 100); v1 = f(x); v2 = ones(size(v1)); X0=x(diff(sign(v1-v2))~=0); X=nan(size(X0)); ...

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Im trying to implement this equation in matlab
It's normally better to use FFTs for cyclic convolution, but if you insist on doing it on the non-Fourier domain, then you can u...

plus de 2 ans il y a | 0

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exportgraphicsunusably slow and memory overruns
Try export_fig, https://www.mathworks.com/matlabcentral/fileexchange/23629-export_fig

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Plot image in 2d plain and apply operations like translation/rotation and reflection
Use imrotate, imtranslate, and flip.

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Manually modifying title position in tiledlayout environment
I was wondering if it is possible to move the title a little closer to the upper limit of the figure environment than it current...

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Newtons Method but error message "Singular Matrix"
Landing on a point with ill-conditioned J is a hazard of plain-vanilla Newton's method. That's why people usually don't use it. ...

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Error : Unable to use a value of type optim.problemdef.OptimizationVariable as an index.
It sounds like the better approach would be to have the 4x4 binary matrix AssignedMatrix be the fundamental unknown optimization...

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how to incorporate boundary conditions as constraints in fmincon optimization?
Use fcn2optimexpr to implement nonlinear constraints.

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Question

Programmatically determine which Deep Learning layer properties contain learnables
In the Deep Learning Toolbox, there are a variety of layer object types. The display methods of these objects indicate which obj...

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réponses

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Rotate 3D Shape so Specific Face is Normal to Given Vector
You can use this to compute the alpha and direction arguments needed for rotate. function [alpha,direction]=vecrot(vstart,vend)...

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How to solve large linear complex equations
Since it is a linear and unconstrained system of equations, just use mldivide, \

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Help with parametrizing a function and creating points
syms x y P [1,2] syms r(t) P1=[x1, y1]; P2=[x2, y2]; r(t)=P1+t*(P2-P1)

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How can i extract data from given variables, for suppose i want to extract charge and discharge separately.
I will assume your data is in a table: type=["charge";"discharge";"discharge";"charge"]; data=(1:4)'; T=table(type,data) ...

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Wanna find specific index(raw) which meet multiple(~3) conditions
use ismembertol to allow for floating point noise, A=rand(5,3); A(4,:)=[39,13.9,17.2]+100*eps Index = find( ismembertol(A...

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Does anybody know what the exact meaning of the following command?
It defines an anonymous function of x,y. Everything after @(x,y) is the expression that will be evaluated. E.g., D=@(x,y) x+y; ...

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How can I import this data with a for loop?
Data{i} = importdata(compose("PendulumTestData/TD%d/IK/HR_1.mot", x(i)));

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How to interpolate 2 dimensions of a 4D array ?
You can use imresizen, to be downloaded from https://www.mathworks.com/matlabcentral/fileexchange/64516-imresizen-resize-an-n-d...

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How to avoid NaN in the Mini-batch-loss from traning convolutional neural network?
I found that changing the solver (from "sgdm" to "adam") resolved the problem.

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How to represent gray scale images as affine subspaces?
So how Can I get the direction and origins so I can compute the grassman distance? Here is another variant that gives a Basis/...

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how to get reference in app designer
It is possible, and what you've shown should have worked, unless your Matlab version is really old. The Code view should show t...

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How to convert values of 0 to NaN
NaNs will not appear bright on an image display. You would have to replace them with a large value. Image(Image==0)=brightValue...

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How to have a class that contains multiple functions that is used in other classes?
A static class method can be imported from a package like in this example, https://www.mathworks.com/help/matlab/ref/import.htm...

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Adding zeros to a column vector to match a larger column vector
This gracefully handles the case when length(x)=length(y), and requires no consideration of whether x,y are row or column vector...

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Is Conv2 based on direct convolution?
It is not FFT-based. To do FFT-based convolution (using the overlap-and-add method) you could use fftfilt.

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How to draw a generic cylinder with arbitrary orientation
See this File Exchange download, https://www.mathworks.com/matlabcentral/fileexchange/87584-object-oriented-tools-for-fitting-c...

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Loading files by replacing some part of the name with a variable
Pre-generate all of the filenames and loop over them. FileNames = compose("GNSS_Validierung_%.2d",(1:41)' )

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Facing problem in solving simultaneous nonlinear equation with 3 unknowns
What @Dyuman Joshi says is true. However, your equations don't seem to make sense without upper and lower bounds on x. For examp...

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Assigning row names iteratively
The row names of a table cannot be non-unique, so having the names of the 7 days of the week repeat 52 times would not generate ...

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Plotting a giant surface exceeding array limitations
First of all, you should consider downsampling from 40000 points to perhaps 400. Having very dense data beyond a certain point w...

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Partial Fourier transform of large sparse 3D array
There is at most 1 nonzero pixel in each x-y plane (first 2 dimensions) ... I'm thinking of doing 1D Fourier transform on each d...

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