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Oh I see it can be answered by find(any(M,1),1,'last')

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Answered 23 days ago

another way is to delete the zeros if m = [ 1 2 3 4 5 0 0 0 0 0 0 0 0] m(m==0)=[] m= [1 2 3 4 5]; However my question i...

Hello, My matlab code is creating very very matrix and I didn't pre-allocate it before. Because I always need to know the size ...

4 Answers

Asked 6 months ago

if a = [9 0 0; 7 0 0; 8 2 0; 8 8 8] K>> t=a(all(a(:,2:end),2),:) t = 8 8 8 however it should be K>> t=a(a...

Answered 7 months ago

Dear all, I have a matrix like A =[23 45 23 56;26 0 0 0;45 23 65 34;34 0 0 0] I want a very efficient way to delete only the r...

Asked 7 months ago

Yes, you are right 'poly2ccw' is not working in 3D, so is any other way to distinguish the clockwise or counter-clockwise order ...

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Responded 1 year ago

Thank you all for your advice, I found the poly2ccw function useful to determine clockwise or counter clockwise direction.

Hello, I have three point in 3D for example= point1=[-1;0;0] middlePoint=[0;0;0] point2=[0;0;-1] I need a way to give me +90 de...

Posted 1 year ago

Dear all, I'm looking for an efficient way to delete zeros after final number in MATLAB, A= [ 5 6 0 3 2 0 9 0 0 0 0 0 0] ...

2 Answers

Hello all, I have a simple question. Assume that I have the following matrix. How can I find the inv of this matrix based on "t...

1 Answers

Asked 5 months ago

Hello all, I have to rewrite my Matlab code to make it faster. in some cases I need to used cell structure to keep my data: for...

For a regular vector we can use following command to extract the vector after pre-allocating. if m = [ 1 2 3 4 5 0 0 0 0...

Asked 22 days ago

I have two pairs of point and vector in 2d and I should find its intersection. for example: p0=[0,0] vector_p0=[0,1] and p1...

Asked 1 year ago

Hello, I'd like to generate a 3D mesh, for example, in my picture, if I calculate all points in a, h, f and c, how can I plot...

0 Answers

Hello, I'm looking for an efficient way to calculate the arc length of Cubic Bezier curve, by knowing P0,P1,P2 and P3. Thank ...

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My problem: I have coordinate and tangent of first point and the end point of Bezier curve and I should draw Bezier Curve in MAT...