Vectors!
I need to learn vectors, but I dont know where to start... If there is any turtorials, or something that I can use to get started, please let me know.
thx
I went to the library and took out a book on them. That''s probably a good place to start.
- Andrew
- Andrew
Hi, i guess you are too young because we all learn vectors in school (math), well... use google, put this on search "3d math tutorials". Well... a vector is like an arrow, it has a start point and an end point, each point has coordinates (x,y) in 2D and (x,y,z) in 3d. Is very simple and VERY useful. Good luck.
Bye
Bye
Yes... like this one...
PLUG:Vectors and Matrices: A Primer
hehe
Death of one is a tragedy, death of a million is just a statistic.
PLUG:Vectors and Matrices: A Primer
hehe
Death of one is a tragedy, death of a million is just a statistic.
quote:Original post by _Rambo_
Well... a vector is like an arrow, it has a start point and an end point, each point has coordinates (x,y) in 2D and (x,y,z) in 3d. Is very simple and VERY useful. Good luck.
Euhmz... is a vector not just a direction, and a vector combined with a beginning a scalar...? Or am I just a confused person at the moment
Curses on my school... They ditched Vector and Matric math for silly Functions.
Okay.
There are basically 2 kinds of 2d vectors.
u = [x,y]
v = [mag, theta]
Both kinds can be represented graphicslly by placing one end at the origin and drawing a line from the origin to the point.
In a cartesian plane, the end is denoted by the [x,y].
In a mag-theta type vector(sorry don`t know the term for it nor the plane`s name), there is a direction(theta) and how far to go along that direction,(mag).
Thats you intro to vectors...
Please find tutorials on them for further info.
There are hordes out there- find one you like.
-V''lion
There are basically 2 kinds of 2d vectors.
u = [x,y]
v = [mag, theta]
Both kinds can be represented graphicslly by placing one end at the origin and drawing a line from the origin to the point.
In a cartesian plane, the end is denoted by the [x,y].
In a mag-theta type vector(sorry don`t know the term for it nor the plane`s name), there is a direction(theta) and how far to go along that direction,(mag).
Thats you intro to vectors...
Please find tutorials on them for further info.
There are hordes out there- find one you like.
-V''lion
Ok, people in this thread ( including people who think they know what they are talking about - but don''t ), I suggest you either read mine or another good article on this, because you seem to just be getting confused.
Vlion - you are only talking about position vectors, which are a special case. Vectors have direction and magnetude, not position. Only position vectors have a position, and usually start at the origin ( hence they can be used to represent points in space ). Oh look, I can''t be bothered to type out this again, read my article, or there was actually a thread in this forum near to when it was created. I remember debating with a guy there on the representation of vectors, so I suggest you try to dig that up.
- Phil.
Death of one is a tragedy, death of a million is just a statistic.
Vlion - you are only talking about position vectors, which are a special case. Vectors have direction and magnetude, not position. Only position vectors have a position, and usually start at the origin ( hence they can be used to represent points in space ). Oh look, I can''t be bothered to type out this again, read my article, or there was actually a thread in this forum near to when it was created. I remember debating with a guy there on the representation of vectors, so I suggest you try to dig that up.
- Phil.
Death of one is a tragedy, death of a million is just a statistic.
quote:Original post by python_regious
Yes... like this one...
PLUG: Vectors and Matrices: A Primer
hehe
Death of one is a tragedy, death of a million is just a statistic.
I''ll second that plug. This is a very good article for learning about vectors, matrices, and transformations.
Graham Rhodes
Senior Scientist
Applied Research Associates, Inc.
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