Answered
I want to start a youtube channel where i develop flight control algorithms. Which matlab license do i need?
You definitely want to contact support, as only they can answer your question. I am not a lawyer. However, it seems if you are ...

1 year ago | 1

Answered
How to filter out the noisy portion of contourf plot?
One basic rule that always applies to things like this. You DON'T want to smooth contours after you have found them. You can't t...

1 year ago | 0

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How to plot one curve and change color according to value
As ifs often the case, I am far too late to the party. :) But there are often many ways to solve a problem, so I like to be able...

1 year ago | 1

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why does this line of code give error- disp("The density of " + element ... + "is" + density). When i press the 'enter ' key after the 3 dots and rerun, it works.
Do this instead: disp("The Density of " + element + " is " + density) What did you write? disp("The Density of " + element .....

1 year ago | 0

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How to fit power-law to each column of data arranged in a table?
Why should it work? I see these lines: [fitresult, gof] = fit( xData, yData, ft, opts ); % Goodnes of the Fit R^2 result...

1 year ago | 1

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To RESHAPE number of elements must not change
How do you fix it? Make sure you know what the size of your array is, before doing a reshape. This way when you do that reshape ...

1 year ago | 0

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hi, find the value of x theoretically?
Do you assume that every expression you can write down has an analytical, neatly written algebraic solution? Surely not. Start ...

1 year ago | 1

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Is a matrix with a condition number of 1e20 definitely more ill-conditioned than a matrix with a condition number of 1e19？
NO. There is effectively no significant difference between the two. At that point, you are into what are essentially random bit ...

1 year ago | 1

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Answered
How to generate vector with non-linear spacing?
It sounds like you want a deterministic, non-random set of points. You can use the inverse gaiussian CDF to do what you want. a...

1 year ago | 2

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Ordering multivariate polynomials by increasing higher order terms
The problem is, the symbolic toolbox does not use the term sequence you personally prefer. In fact, you can't control the sequen...

1 year ago | 0

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I'm doing an project in matlab software and my data set having more than 1 lakh images so can you prefer any best laptop for this processing in i7
I think you do not understand. Moving from an i5 to an i7 will improve things. Multiple cores, lots of memory will be nice, even...

1 year ago | 0

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Multivariate regression for constrained dependent variables
Sorry. You CANNOT insure that y1+y2 == 1, EXACTLY. At least not if there is any noise in your data. All you can do is to use it...

1 year ago | 0

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Using Matlab Runge Kutta Routine
"IT WON'T GO PAST THE FIRST INCREMENT". Lol. Exactly what do you think this does in the very beginning of the loop? for count ...

1 year ago | 0

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Unable to resolve the warning on ill conditioned Jacobian
A not uncommon misunderstanding about modeling. First, look carefully at your data. M = importdata('datai2j3.txt'); x = M(:,1...

1 year ago | 0

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volume of set of points in 3d space with gap
Is there any way you can make the convex hull adequately represent a region that is not in fact convex? Of course not! You have...

1 year ago | 0

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Problems by calculating zero points of a cubic function
Or, you can use analytical tools. syms x a f = -2*x^3 + x^2 + 0.5*x -8; % Remember to use * to multiply fa = f + a; Before y...

1 year ago | 0

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How to choose a single element randomly from a vector
I've upvoted the answer by @R. Please accept it. My answer here is only to express some ideas that are really best put in a comm...

1 year ago | 0

Discussion

Using MATLAB to find a generative equation for a sequence
This stems purely from some play on my part. Suppose I asked you to work with the sequence formed as 2*n*F_n + 1, where F_n is t...

1 year ago | 8

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Setting unknown constants in equation for known data
This is the classic regression problem, either linear or nonlinear, and that depends on how the parameters enter into the "model...

1 year ago | 1

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Efficient management of interacting atoms based on their mutual distance
No. It is NOT true that in a set, if atom x is one of the k closest atoms to atom y, that the converse is also true, i.e., that ...

1 year ago | 0

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Numerical integration of area
The region in color? The integral will be negative, or course, since depth is entirely negative. But you perform such an integr...

1 year ago | 1

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Answered
Particle Swarm Optimization - What method is used to find local minimum?
Particle swarm optimization, https://en.wikipedia.org/wiki/Particle_swarm_optimization is one of many meta-heuristics used to ...

1 year ago | 0

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Answered
Any ideas for making this exponential decay function match the actual data better?
(I spent so much time writing this as a comment, I might as well make it an answer.) @Image Analyst asks a valid question. I ha...

1 year ago | 1

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Remove exponentials with positive argument in symbolic MATLAB
Very often symbolic computations are less easy than you want them to be, because the computer does not see one thing as simple v...

1 year ago | 0

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I need to create a polygon or buffer along an irregular shaped coastline in a 2D array of gridded sea temperature data.
Easy enough. Almost trivial, in fact. Of course, making a buffer zone of width exactly one pixel is alays going to be slightly p...

1 year ago | 0

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Derive full formula from fitlm(X,y,"quadratic")
X = rand(258,6); y = rand(258,1); mdl = fitlm(X, y, "quadratic") There are 6 variables, here called x1...x6, corresponding ...

1 year ago | 1

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Answered
Running a large array
Memory is cheap. Get more memory. I'm sorry, but if you want to work with big data, you will often need sufficient capabilities...

1 year ago | 0

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Why did I get two different results in nonlinear programing problems
You have a nonlinear problem. You need to understand that given any set of starting values, an optimizer will sometimes find a s...

1 year ago | 0

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The equation of the curve at the intersection of the two 3D surface, One is a cylinder.
It is not always trivial to find that curve as some explicit function. Here, yes, you can do so easily enough. syms x y z r = ...

1 year ago | 2

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Answered
creating loop that stops at correct formula for the given input.
You have a fundamental problem here, that you fail to understand. You CANNOT solve for more than 6 parameters, given only 6 data...

1 year ago | 0

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