Return Styles: Pseud0ch, Terminal, Valhalla, NES, Geocities, Blue Moon.

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line in space

Name: Anonymous 2008-11-16 15:08

How do I find the (Cartesian) equation of the line between (1,-1,1) and (2,-1,-2)?

Name: Anonymous 2008-11-16 15:22

http://www.google.com/search?q=equation+of+a+line+in+three+dimensions

Name: Anonymous 2008-11-16 15:37

Well I can get:



    x = 1 + a

    y = -1

    z = 1 - 3a

from the vector equation, but then what? I'm thinking maybe x - 1 = (1 - z)/3, but what about y?

Name: Anonymous 2008-11-16 16:15

You can't write a single equation for a line in three dimensions, you have to stick with the parametrized version

Name: Anonymous 2008-11-17 1:01

x - 1 = (1 - z)/3
y = -1

boom.

Name: rage 2008-11-17 1:23

If you look at ANY of the fucking results on the first page (at least) of that Google search, you'll find a decent enough answer, you fucking retards. Fucking rage sage.

line in space

1 Name: Anonymous 2008-11-16 15:08

2 Name: Anonymous 2008-11-16 15:22

3 Name: Anonymous 2008-11-16 15:37

4 Name: Anonymous 2008-11-16 16:15