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  1. The definition of "direction vector" - Mathematics Stack Exchange

    Jun 13, 2020 · The term direction vector seems to have ambiguous meaning or at least to be used in ambiguous ways (in my native language). A direction vector seems to be two different things in …

  2. What exactly does it mean for a vector to have a direction?

    Jun 3, 2020 · Vectors are defined as having magnitude and direction. If I understand it correctly, their magnitude is their length, meaning they have the properties of a line segment. What does it mean for …

  3. direction vector of line - Mathematics Stack Exchange

    Sep 8, 2023 · The direction vector of a line can be represented as a vector (dx, dy) (d x, d y), where dx d x is the change in the x x -coordinate and dy d y is the change in the y y -coordinate as you move …

  4. linear algebra - How to Calculate the Direction of a Vector ...

    In my experience, it's rarely useful to compute the "direction" of a 3D vector as a separate value. What do you want to use these quantities for? There may be a simpler way to do it.

  5. Direction vector of a line - Mathematics Stack Exchange

    Direction vector of a line Ask Question Asked 7 years, 11 months ago Modified 7 years, 5 months ago

  6. Given the equation of a straight line, how would I find a direction vector?

    Then $ (a,b)\sim (1,b/a)$ are direction vector--multiplying by a non-zero scalar changes the magnitude, but keeps it pointing along the same line. The point slope form of the line is then

  7. Is there a notation for denoting the direction of a vector?

    1 Suppose I have a vector $\overrightarrow {a}$. If I wanted to describe its magnitude, there's a standard notation for that, $\lVert\overrightarrow {a}\rVert$. Is there a standard notation for its orientation?

  8. How to find direction and normal vector? - Mathematics Stack Exchange

    May 17, 2015 · How to find direction and normal vector? Ask Question Asked 10 years, 9 months ago Modified 8 years, 2 months ago

  9. Vector direction given the points? - Mathematics Stack Exchange

    Apr 5, 2012 · do you want to know the direction vector? the direction of the orange arrow is the same as the direction from A to B. So, you have to form a vector AB.

  10. rotations - How do you rotate a vector by a unit quaternion ...

    Given a 3-variable right-handed vector v that is a translation measured in local space and a unit quaternion representing an orientation from local to world space, how do you use the quaternion to ...