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Taylor series approximation problem
As an example, syms x T=taylor(exp(-x),x,7,'Order',4) fn=matlabFunction(T) fn(3) You can of course find more examples...

6일 전 | 0

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how can I call a class in a gui?
I have defined a class TimeData by a script Don't you mean you defined it in a classdef file? The constructor function for a c...

7일 전 | 0

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Trying to supply fsolve with system's Jacobian but receiving error ''check for incorrect argument data type"
It is not clear (from what you posted), why you are using symbolic variable manipulation at all. fsolve is a numerical solver, n...

7일 전 | 0

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Rotate Values of Matrix
Use imtranslate() to center the source in the image, then use imrotate() it by the desired angle, then use imtranslate() once mo...

7일 전 | 0

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Get the last for digits as the time this message was sent
Is this what you want? str=char( "!AIVDM,1,1,,A,13cut>1001P:3LRGa`P@jip400S<,0*410002" ) str(end-3:end)

7일 전 | 1

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Is it possible to set an upper limit on the step size used by fsolve?
You could try playing with the InitDampling option parameter used by the Levenberg-Marquardt method.

8일 전 | 0

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Am I understanding this correctly?
If by "low" you mean zero and by "high" you mean 255, then yes.

8일 전 | 0

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Not sure why while loop won't run.
balance(1) = 1000; contribution = 1200; interest = 0.0025; M = 2; % month ticker while balance(end) < 500000 ba...

8일 전 | 2

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How select data just out from a polygon, considering a constraint
borders=[0,0;0,1;1 1;1 0]; p=polyshape(borders); p=blurHull(p,[0.3,0]); p=blurHull(p,[0, 0.1]); isinterior(p,datas) ...

8일 전 | 0

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Creating Matrix Subset automatic.
You should be doing it as follows: S=A([1,4,7],:);

8일 전 | 0

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How can I sort vector according to its index?
[vect,ind]=sort(vect,'descend')

8일 전 | 0

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Plotting Phase Plane in Matlab
For example, funx=@(t) c1*exp(-3*t)+c2*exp(-t); funy=@(t) -c1*exp(-3*t); fplot(funx,funy,[0,1]) or t=linspace(0,1,100); ...

9일 전 | 0

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Unable to perform assignment because the indices on the left side are not compatible with the size of the right side
parfor i=1:16000 tmp=double(solve(f==A(i),x)); if isempty(tmp), warning 'No sol...

9일 전 | 1

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Newton's method
Tab=[]; for x = -1:0.05:5 Tab = [Tab , newton(@f1,@df1,x,10^(-8)) ] end

9일 전 | 0

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add a row to a matrix each loop
Just concatenate: A=eye(5) newrow=rand(1,5); A=[A;newrow]

9일 전 | 0

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Registering two images where the camera has translated
The default multi-modal options seem to work pretty well. imreader=@(z,s) imresize(rgb2gray(imread(z)),s); %Register at ...

9일 전 | 0

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How to draw 9 cones using kronecker product?
If you have the matrix of surface values of a single cone, you could simply do, surf(kron(ones(3), singleCone))

9일 전 | 0

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Why does my matrix give me a syntax error
(It follows the END that terminates the definition of the function "Fnorm".) That is not allowed. All local functions must be p...

10일 전 | 0

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How can I make MATLAB shade the area of the virtual intersection between two lines?
You can use fill() or patch().

10일 전 | 1

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How to select rectangle ROI in the image and adjust the position of ROI manually. Then it can return the adjusted ROI position
h=drawrectangle(); wait(h); You must double-click on the rectangle to confirm its position and return control to Matlab.

10일 전 | 0

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Mirrored ifft and ifft2
If you do ifft(x,'symmetric'), the actual right hand side values will be ignored, or rather assumed to be a mirroring of the lef...

10일 전 | 0

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How to change optimization variable
You cannot do that in a continuous optimization problem, although in sparse optimization, it is common to approximate the number...

10일 전 | 1

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Curve fitting with set area
The area constraint is non-linear. You would have to use fmincon instead.

10일 전 | 0

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fsolve doesn't find a solution when the value of the objective function is obtained through a Montecarlo simulation
Does your Monte Carlo simulation also compute an approximation to the Jacobian, or are you relying on fsolve's default finite di...

10일 전 | 0

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Quadratic Constraints/Optimization error in Matlab 2020b but not Matlab 2020a
Was MATLAB running an old version of strjoin.m that was incompatible with the problem based optimization? Yes, it appears that ...

11일 전 | 0

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why my matlab didn't plot anything?
m = 85; g = 9.81; ti = 0; tf1 = 9 ; v(1)= -20; h = 1; c1 = 11; dv1 = @(g,c1,v,m) g-c1*v/m; k=1; while(ti<tf1) ...

11일 전 | 1

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Remove steps of adjacent points
Perhaps as follows: threshold=0.5; t=0:0.01:3; signal=log(mod(t,1)+1); D=diff(signal(:).'); D(abs(D)>threshold)=0; ...

11일 전 | 1

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simple fmincon problem, optimization toolbox
The point X=[0,0,0] is a first order local minimum. It is a point of zero-gradient, and it satisfies the constraints. You made a...

11일 전 | 0

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How to get matrix indices from roipoly
You must interchange the coordinates (i,j)=(yi2,xi2)

11일 전 | 0

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Is it possible to set an upper limit on the step size used by fsolve?
I've tried using fmincon with the same initial guesses as fsolve without success: A simpler option than fmincon would be to us...

12일 전 | 0

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