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

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Answered 3 months 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 9 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 10 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 10 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 ...

1871 views

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 8 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 3 months 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 ...

558 views

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...

Asked 2 years ago