Answered
'polyfit' for parametrized curves.
Can polyfit be made to solve this in a parameetric form? NO. Why not? Because even if it COULD be used for that purpose, the res...

3 years ago | 1

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Answered
Boolean operations with polyshape objects
Computers are such literal things. They do what you tell them to do, not what you want them to do. The fix lies in the mind read...

3 years ago | 0

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Answered
Observation: sortrows() blows up when attempting to sort empty cells
output = cell(5,5); output(1:3,1:5) = {'1'}; output(4:5,1:5) = {''} sortrows(output) Gosh. I must be using a different versi...

3 years ago | 0

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Answered
Moment diagram code error when using .^2
You SAID that you understand the need for the .* and .^ operators. Then we see this: M=-(UDL/2)*(x-0).^2*(x>0) + (UDL/2)*(x-4)....

3 years ago | 0

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plot two implicit functions in one figure
Show what you have tried. If nothing, why not? First, apparently you know what an implicit function is. So have you tried using ...

3 years ago | 0

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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...

3 years ago | 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...

3 years ago | 1

Answered
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...

3 years ago | 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...

3 years ago | 1

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Answered
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...

3 years ago | 1

Answered
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 ...

3 years ago | 1

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Answered
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...

3 years ago | 0

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Answered
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...

3 years ago | 0

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Answered
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...

3 years ago | 0

Answered
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...

3 years ago | 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...

3 years ago | 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...

3 years ago | 1

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Answered
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. ...

3 years ago | 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...

3 years ago | 1

Answered
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(...

3 years ago | 1

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Submitted

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

3 years ago | 3 downloads |

0.0 / 5

Answered
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...

3 years ago | 3

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Answered
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...

3 years ago | 0

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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...

3 years ago | 0

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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...

3 years ago | 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 ...

3 years ago | 0

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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 ...

3 years ago | 0

Answered
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...

3 years ago | 0

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Answered
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...

3 years ago | 0

Answered
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 =...

3 years ago | 0