# Mathematical vectors

**URL:** <https://forum.kirupa.com/t/mathematical-vectors/75354>\
**Category:** Uncategorized\
**Created:** [January 8, 2005, 12:17am UTC](https://forum.kirupa.com/t/mathematical-vectors/75354 "2005-01-08T00:17:45Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![H4T](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.kirupa.com/h4t/32/329_2.png) [@H4T](https://forum.kirupa.com/u/H4T)\
**Post date:** [January 8, 2005, 12:17am UTC](https://forum.kirupa.com/t/mathematical-vectors/75354/1 "2005-01-08T00:17:45Z")

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I am looking for info on vectors in Flash, but not the graphical kind. The kind that deals with physics. The reason is, I just finished developing a 1D elastic collision file, and I want to move on to 2D collisions, which requires transfer of direction, as well as speed.

The velocity transfers are pretty easy, its the vectors that throw me off. I thought about getting the slope of the line it follows, then picking out the individual X and Y components of the ball in motion and applying them to the next ball, but then theres the whole issue of reflection and things like that. Any ideas?