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Faster polygon operations than polyshape
I used http://www.angusj.com/delphi/clipper.php#code with satisfaction

5年以上前 | 1

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MeX implementation of Tensorproduct multiplications
I propose two other methods of MATLAB. The first simply replaces (:,:) by RESHAPE. The first doing some data copy, the second d...

5年以上前 | 0

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When is minimum p-norm solution independent of p?
This code is a toy example of 2 x 2 with random f0 and show most of the time it driven by the linear constraints and all three g...

5年以上前 | 2

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Generate a Matrix with the structure in the description
A=nchoosek(1:128,2)

5年以上前 | 1

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質問

MEX: How to modify xml file for unsupported compiler?
Context: I download the intel oneAPI C++ compiler. The C compiler is not supported by Matlab R2020b and I try to design the xm...

5年以上前 | 1 件の回答 | 3

1

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Avoid MCR CACHE deletion each time an executable is launched
"Now, if I launch the Filter.exe, the folder of the Init.exe in the MCR_CACHE is deleted and a folder for the Filter.exe in the ...

5年以上前 | 0

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How to Generate Randomized Data Set with Given Mean/Median/Standard Deviation
There is infinity of random variables with the same mean/median/standard deviation Here is one that meet what you ask (three di...

5年以上前 | 0

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Vectorize for loop: corr2(A(:,:,i),B(:,:,i))
If you have R2020b, you mght try to vectorize with pagemtimes function (or use mtimesx from File exchange) meanA = mean(A,[1 2]...

5年以上前 | 0

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Multiplication of tranformation matrices gives strange result
Your decription does not match with what your code is doing (your code) You take T1 on (x,y) data You take T2 on (x,y)...

5年以上前 | 1

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How to find the last 1 in every row
Depending on the density of 1s, but a for-loop (remember that?) might be the fatest function BenchMax A=rand(10000)>0.5; ...

5年以上前 | 0

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Reshape data vector for a surf plot over a non-rectangular domain
A diamond shape is bijective mapped from/to a rectangular shape, thus meshgrid/ndgrid combined with surf are still applicable. ...

5年以上前 | 1

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Matrix Operation and decomposition
Just straight as-it-is syntax A^(1/2) A^(-1/2) or sqrtm(A) inv(sqrtm(A)) % sqrtm(inv(A)) Checkout https://www.mathworks.co...

5年以上前 | 0

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atan2 not consisent
Your result atan2(a(77:78,2),a(77:78,3)) ans = 3.141592653589793 -3.141592653589793 Type single value a(78,2) yo...

5年以上前 | 0

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Determinant of a unitary matrix
Here is one way of computing determinant of a complex matrix U, based on Q-less qr n = size(U,1); d = 1; for k=1:n i = k...

5年以上前 | 0

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Counting consecutive negative numbers in an array
length(strfind([false v<0],[0 1])) or sum(diff([false v<0])==1)

5年以上前 | 1

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Output only numbers with complex conjugate
a(ismember(a,conj(a))&imag(a)>=0)

5年以上前 | 0

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送信済み

Random unitary matrix (and standard subgroup of U(n))
Generate matrix of one of these four supported types of groups: O(n), SO(n), U(n), SU(n)

5年以上前 | ダウンロード 1 件 |

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Possible combinations for a vector
dec2base(0:3^9-1,3)-'0'

5年以上前 | 0

質問

Determinant of a unitary matrix
Is there any other (better) way to compute the determinant of the unitay matrix beside det (that calls lu factorization)? >> [U...

5年以上前 | 2 件の回答 | 0

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Create Random Points in Elliptical Belt
If the two ellipse has the same aspect ratio and aligned then this is the method without rejection. n=1e4; ax=3; ay=1; rin...

5年以上前 | 0

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Find angle of rotation matrix in MATLAB
Yes the approach is wrong your code has plenty of bugs* you need to learn how to debug you need to pratice MATLAB onramp O...

5年以上前 | 0

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difference between str2num and str2double for getting a matrix
Under the hood str2num uses EVAL str2double uses SCANF, and work only on scalar. I see no reason why SCANF is more accurate t...

5年以上前 | 0

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how to calculate number of unique element in array?
c =[ 1 1 1 1 1 1 2 1 2 2 2 3 2 4 2 5 2 5 3...

5年以上前 | 0

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What is the simplest way to map vector values of float to matrix of floats ?
The only vector of key map container supports is char vector (variable length) If your vector has fixe length say n; you could ...

5年以上前 | 0

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Solving a linear system equations with variables on both sides
See my answer in another thread.

5年以上前 | 0

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Bit wise operation of And and XOR together
Z=quad(0,1,1,0,1,0,1,1) function F10 = quad(u2,v2,w2,x2,u3,v3,w3,x3) % note: u2 and u3 not used anywhere F10=1+v2+x2+x2*v2+...

5年以上前 | 0

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Surface plot not displaying full data range
Cross answer

5年以上前 | 0

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surface plot face not showing colors corresponding to Zgrid in some areas
Here is a workaround, keep flat facecolor. You can use mean/min instead of max depending on what is relevant for you. Z=peaks(1...

5年以上前 | 0

質問

LOADLIBRARY error 'CL' and LIMITS.H not found
I get this error message recently >> loadlibrary('C:\WINDOWS\system32\user32.dll', 'WinMouse.h') Error using loadlibrary Fail...

5年以上前 | 0 件の回答 | 4

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grouping indices based on how close they are
If your array is sorted >> c = mat2cell(a,1,diff(find([true diff(a)>5 true]))); c{:} ans = 11 12 13 ans = ...

5年以上前 | 0

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