Finding a 3D line through 2 points

[@Lalallalala35]

Thank you kind sir

[@nikhilshanbhag4182]

i was struggling with a difficult math problem involving this technique and you helped me out! thanks a lot for this vid!

[@JohnSmith-ge6qc]

Just excellent. Bing, bang boom. No waiting until 5 min mark. Excellent!

[@prezidentjackson3346]

Thank you very much. Video was clear, concise, and helpful.

[@kierancc544]

This has saved me, Thank you Mr Lippman I will now survive the wrath of my lecturers.

[@JamesRed2]

i am extremely please with this video

[@amaan1549]

Yeah amazing video, helping out students even 8 years later haha

[@AmCanTech]

thank you so much!

[@nishant513]

Watching in Feb 2021 🤯
Great just great video thanks

[@theshtig4218]

Thank you bradder

[@Leo-fw7jo]

Hi. what if we want to find an equation of line in projective plane in Z7. a solid question is : In the
Z
7 projective plane find an equation of the line through the points [
(
2,0,4)] and [ (6,2,6) ] . and we want to write the equation of line in the form ax+by+cz=0.

[@amaan1549]

What do you mean by Z7 ?

[@ahmed_elsisi]

Thank you so much, made it pretty simple.

[@TheTalmon18]

If you were to plug in: t=1/3, 1/2 etc
Would you get the "1/3 point" and the Midpoint between the 2 points?

[@pranjalsrivastava3343]

yeah but then you have to modify the equation further

[@tojumikie4007]

great video. helped me to understand

[@amaan1549]

Fr man

[@leopoldoizquierdo9805]

one question (sorry for my bad engilish): the red vector should not be normalized?....thanks beforehand..

[@drlippman]

You could normalize it, but it's not necessary. If you did, then the line would not be at the second point at t=1, which frequently comes in handy.

[@leopoldoizquierdo9805]

right, i did not see it....thanks for the reply....

[@dylanpilkington8847]

so good

[@HOLONIA4EVER]

Great !

[@TheMothproof]

That was helpfull, thanks

[@vikcy123456]

thanks for this video..

[@MrRobotLong]

What is t?

[@bosscs]

how come 1 with -5 = -6 ???? is not it = -4 ???? (1-5) = -4 ???

[@bartekordek]

Negative distance?

[@charlieguthrie7487]

Distance is from 1 to -5, so subtract the starting point from the destination, or (-5 ) - (1) = -6

[@Prateek.Singhh]

Actually those are direction ratios

[@ClearTheHaggis]

Thanks

[@aymansaid1253]

thank

[@gabe5225]

welcome

[@marcoronzani7197]

i have to be serius, i was expecting something more deep, this is not ok for what i was looking for, the one eith t is not something that i'd like to call parametric equation!

[@Maul505]

the parametric equation is literally right on the screen bro

[@gabe5225]

IM GAY