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How do I make a specific range of numbers and increment?
What does any of the other information have to do with anything? That is, we have no interest in the values of Q, R, or kJ, or a...

más de 3 años hace | 0

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Help with non linear equations.
syms mu sigma alpha eq(1) = 8.07 == mu - sigma + sigma*(1-0.1)^(-1/alpha) eq(2) = 11.82 == mu - sigma + sigma*(1-0.5)^(-1/al...

más de 3 años hace | 1

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I deleted part of the trapz function code, how do I fix it?
@Bora Eryilmaz gives the code. Thanks for having done that. In the long term though, this points out why you should strenuously...

más de 3 años hace | 0

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How to solve an ecuation without symbolic variables?
I won't do homework. But I'll give you a hint or two. First, what does the mean value theorem tell us for integrals. It says th...

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Optimization of a multivariable function within given solution space
100 variable problems are hugely more complex than 3 variable problems on a very limited search space. You can often solve the s...

más de 3 años hace | 1

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Mirror a point cloud (nx3 matrix) with respect to a plane
Pretty simple really. The YZ plane lies at X == 0, and is perpendicular to the x axis. So just negate the value of x, in each ...

más de 3 años hace | 1

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New to matlab and I do not understand given code
As much as I dislike doing homework for students, this is a case where I will relent, because it is very uncear why one would su...

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Is there a function to find the paired factors of an integer?
allfactorpairs = @(n) [divisors(n)',n./divisors(n)']; allfactorpairs(16) If you want only those pairs where the first elemen...

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How to detect cluster of radial lines which are generated from same point ?
Surely there is a tool you can find in image processing to search for lines. Use it. Find all lines in the image. For EACH dark...

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Symbolic solution for intersection points between a torus and a circle. How to make it concise? (for rewriting to C++).
How would I do it? Simple enoiucgh. The equation of a torus is easy to write in a parametric form, so as a function of two angle...

más de 3 años hace | 0

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new interface for QR decomposition in Matlab 2022a
Yes. You are correct, in that QR now returns only the upper triangular factor. A = rand(5,3); result = qr(A) In the release h...

más de 3 años hace | 0

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Polyfit coeffs weird output
You don't really need to show anything more than this: [p,s] = polyfit(x1,y,15); A degree 15 polynomial. That means the equati...

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how to derivate an equation of x and y without taking any variable constant?
Specify that y is a function of x. You o so like this: syms y(x) Now you can differentiate that expression with respect to x. ...

más de 3 años hace | 2

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while loop keeps running forever
I think you seriously need to spend some time with the MATLAB tutorials. while is not terminated by endwhile A while loop is n...

más de 3 años hace | 1

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Power of a binary matrix
This is really pretty simple. Far simpler than you might think. You want to do a powermod operation, on a matrix, so mod(...

más de 3 años hace | 1

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minkowskiSum
Compute the Minkowski sum of any two polygons or polyshapes, convex or concave.

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Generalized Minkowski Sum calculation
https://en.wikipedia.org/wiki/Minkowski_addition The convex case is quite simple to solve. I could write code for that in a few...

más de 3 años hace | 3

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I need a graph to be smooth
You asked this question before. I answered it. In fact, you even show the code I wrote. And you accepted my answer then as I rec...

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Why does Matlab's divisors function take so long when working on an ordinary integer?
You ALWAYS. ALWAYS. ALWAYS need to consider the arguments for a function. Does it work in double precision, or as a sym? Don't f...

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boundry value third order problem
I don't know if this is homework. But it possibly is. So I'll just point you in a decent direction. And if you are going to sol...

más de 3 años hace | 1

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Normalizing a set of data to zero
Do you want ALL of those minima to be zero? If so, then you will need to do something especially artful. If all you want is the ...

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Random 3D Array of Cylinders with Random Rotation and Fixed Length
THERE IS NO SIMPLE SOLUTION. Accept that. For example, even for as simple a problem as random sphere packing, where you want to ...

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Why my polynomial function is wavy
A simple rule applies: Polynomials oscillate. Not infinitely many times. But this is a fundamental nature of polynomials. As the...

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NEED URGENT HELP! Code keeps returning the desired variables as empty 0x1
Must a solution exist for all problems? No. Of course not. Those empty syms are a signal that MATLAB was unable to solve your pr...

más de 3 años hace | 0

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Trying to find area under my plot
You don't give your data. You show only a plot. So make a polyshape of it. Then compute the area. t = linspace(0,2*pi,50); x =...

más de 3 años hace | 0

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Replacing special character 'É' to 'E'
Easy peasy. str = 'ABCDEFGHIJKÉÉÀÀÄÄabcdefghijkl' strrep(str,'É','E') If there are other special characters you want replaced...

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Broad confidence bound range when fitting in Matlab
Wide confidence limits are typically a symptom, a reflection of uncertainty in some form. And unfortunately, we don't have your ...

más de 3 años hace | 1

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How to perform svd without using the inbuilt function?
Why? That is, why is SVD not acceptable? Yes, you could write a complete code to compute the SVD, without using a call to SVD. ...

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Why am I getting this error? "Array indices must be positive integers or logical values".
Is P0 a function? (NO. It is a scalar variable.) You have this: P_twitch_short(i) = P0(0.0258*(exp((stiff*RLS)))-0.0258); Did...

más de 3 años hace | 1

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How to recover jpg or RAW images?
I'd be looking at my backups. (A GREAT thing to do.) Of course, if you are asking this question, there are no backups. Before th...

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