Projection of vectors and scalars

Click For Summary
SUMMARY

The discussion clarifies the concept of vector projection, specifically how to project vector u onto vector v. It establishes that projecting scalars is not a meaningful operation. The method involves dropping a perpendicular line from the tip of vector u to vector v, with the resulting projection being the vector from the base of v to the intersection point. This analogy is likened to a shadow cast by a light source, emphasizing the visual aspect of vector projection.

PREREQUISITES
  • Understanding of vector mathematics
  • Familiarity with geometric concepts
  • Knowledge of linear algebra
  • Basic grasp of vector notation
NEXT STEPS
  • Study vector projection formulas and their applications
  • Explore geometric interpretations of vector operations
  • Learn about linear transformations in linear algebra
  • Investigate the role of projections in computer graphics
USEFUL FOR

Students of mathematics, physics enthusiasts, and professionals in fields such as computer graphics or engineering who seek a deeper understanding of vector operations and their applications.

Red_CCF
Messages
530
Reaction score
0
Hi

I was wondering if someone can explain what projection of vectors and scalars mean. I read a lot of site but they fail to give me a clear explanation. Thanks.
 
Physics news on Phys.org
Projection of scalars doesn't mean anything, as far as I know. To project one vector, u, on another, v, drop a line perpendicular to from the tip of u to v. The projection of u on v is the vector from the base of v to that point.

To see the reason for the name, imagine that there is a light shining from behind u toward v. The "projection of u on v" is the shadow[/b] of v in exactly the same way a movie film is projected on the screen.
 

Similar threads

  • · Replies 19 ·
Replies
19
Views
2K
  • · Replies 10 ·
Replies
10
Views
3K
  • · Replies 18 ·
Replies
18
Views
4K
  • · Replies 3 ·
Replies
3
Views
3K
  • · Replies 1 ·
Replies
1
Views
3K
  • · Replies 0 ·
Replies
0
Views
9K
  • · Replies 3 ·
Replies
3
Views
4K
  • · Replies 8 ·
Replies
8
Views
3K
  • · Replies 9 ·
Replies
9
Views
11K
  • · Replies 44 ·
2
Replies
44
Views
5K