how to find intersection point between two paired matriices

A=100*100

B =100*100

C=1*100

D=1*100

how to find intercept of [A B] on [C D]

Answer 1

[Sameer]

Hi @CHRISTOPHER S

To find the intersection points between two paired matrices, where each row in [A B] and [C D] represents coordinates (like x and y), you can treat them as sets of 2D points and look for common rows.

Assuming A, B, C, and D are 1×100 vectors, you can do the following:

AB = [A(:), B(:)];
CD = [C(:), D(:)];

[commonPoints, ia, ib] = intersect(AB, CD, 'rows');

This will return the intersection points in "commonPoints", along with their indices in "AB" and "CD".

Note: This method works well if values match exactly. If you're dealing with floating-point data and want to allow a small tolerance, consider using rounding or a custom distance check instead.

For more details please refer to the following documentation:

www.mathworks.com/help/matlab/ref/intersect.html

www.mathworks.com/help/matlab/ref/round.html

Hope this helps!