How do I know if two vectors are near parallel - Stack Overflow
Sep 27, 2011 · I am having some trouble finding parallel vectors because of floating point precision. How can I determine if the vectors are parallel with some tolerance? I also need a …
Most efficient way to check if two vectors are parallel
Sep 4, 2018 · Given two vectors u=(ux,uy,uz) and v=(vx,vy,vz), what is the computationally cheapest way of checking whether they are parallel or nearly parallel (given some threshold to …
How to check if vectors are facing same direction
You need instead to perform the dot product between the two vectors. You get 1 if the two unit vectors are completely aligned (parallel), -1 if they're antiparallel, and zero if they're normal to …
math - Intersection of two vector - Stack Overflow
Jul 22, 2022 · If you want to restrict the solutions to the line segments defined by the points and vectors, check that r and s belong to [0, 1]. From r or s you can compute the position of the …
How do I know if two line segments are near collinear
I need to know if two line segments are near collinear. I think your answer tells me if two vectors are near parallel. Well, two line segments are near co-linear if they share at least one point …
How to determine if a vector is between two other vectors?
Mar 9, 2015 · I am looking for a fast and effective way to determine if vector B is Between the small angle of vector A and vector C. Normally I would use the perpendicular dot product to …
How can I check if two segments intersect? - Stack Overflow
Oct 1, 2010 · 3 Here is C++ code to check if two points are on the opposite sides of the line segment. Using this code you can check if two segments intersect as well.
How to compare two vectors for equality element by element?
A simple way to compare if you have two unsorted arrays which you want to check contain exactly the same values, is to sort them, and then use any one of the standard library methods to do a …
Algorithm to find a vector parallel to a plane and perpendicular to ...
The vector r is parallel to the plane F and also perpendicular to the vector c. Therefore, we can say the vectors c, r and u are orthogonal. Let's denote * as dot product, and ^ operator is cross …
Direct way of computing the clockwise angle between two vectors
I want to find out the clockwise angle between two vectors (two-dimensional or three-dimensional). The classic way with the dot product gives me the inner angle (0-180 degrees), …