Finding the Shortest Distance between Skew Lines

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SUMMARY

The shortest distance between two skew lines is determined by a vector that is perpendicular to both lines. This distance can be calculated using the formula d = |\vec{V} \cdot \hat{n}|, where \vec{V} is the vector displacement between points on each line, and \hat{n} is a unit vector derived from the cross product of the direction vectors of the lines. The discussion emphasizes that arbitrary points do not yield the shortest distance; instead, the perpendicular vector must be utilized to accurately measure the distance between the lines.

PREREQUISITES
  • Understanding of vector mathematics and operations
  • Familiarity with the concept of skew lines in geometry
  • Knowledge of cross products and their geometric interpretations
  • Ability to manipulate equations of lines in three-dimensional space
NEXT STEPS
  • Study the derivation of the distance formula for skew lines in 3D geometry
  • Learn about the properties of cross products and their applications in vector analysis
  • Explore examples of calculating distances between skew lines using specific equations
  • Investigate the geometric interpretation of projections in vector spaces
USEFUL FOR

Mathematicians, physics students, engineers, and anyone involved in geometric analysis or vector calculus will benefit from this discussion on calculating distances between skew lines.

  • #31
ok so it seems to be consistent so there is only one lunit vectorl which is perpendicular to both lines and therefore the shortest distance must be in this direction i believe that this can be understood by taking all vectors to the origin and then raising one direction vector away from the other you will see that the shortest distance is along the cross product vector in a way its raising the point of intersection and then meaduring the distance
 
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