A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
question
anonymous
 one year ago
question

This Question is Closed

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1433512332090:dw

Loser66
 one year ago
Best ResponseYou've already chosen the best response.2R can be understood as direction \(\mathbb R\) is one direction dw:1433512991259:dw

Loser66
 one year ago
Best ResponseYou've already chosen the best response.2\(\mathbb R^2\) is 2 dimensions

Loser66
 one year ago
Best ResponseYou've already chosen the best response.2\(\mathbb R^3\) is 3 dimensions dw:1433513079018:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0that's a really stupid notation when u could just say we're working in 3 dimensions!!!

Loser66
 one year ago
Best ResponseYou've already chosen the best response.2\(\vec r(t)=< f(t), g(t) >\) is parametric vector

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0what's the meaning of those less than greater than symbols?

Loser66
 one year ago
Best ResponseYou've already chosen the best response.2That is just the notation for YOU to realize that is a parametric vector form

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I know \[\vec r(f(t),g(t))=f(t)i+g(t)j\]

Loser66
 one year ago
Best ResponseYou've already chosen the best response.2For example: you have distance , velocity and time. You can graph a distance w.r.t time by the graph with xaxis representsdw:1433513283150:dw time and yaxis represents distance

Loser66
 one year ago
Best ResponseYou've already chosen the best response.2same as velocity and time dw:1433513309349:dw

Loser66
 one year ago
Best ResponseYou've already chosen the best response.2What if I want you to graph distanc/ velocity and both w.r.t time?

Loser66
 one year ago
Best ResponseYou've already chosen the best response.2Use parametric equations to jot them out.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I simply know that \[\vec r(x,y,z)=x i+yj+zk\] now be it x or x(t) either way we will have \[\vec r(x(t),y(t),z(t))=x(t)i+y(t)j+z(t)k\] I just don't understand those curly braces

Loser66
 one year ago
Best ResponseYou've already chosen the best response.2Think of this, an accident happens. A car felt down a cliff. dw:1433513446289:dw

Loser66
 one year ago
Best ResponseYou've already chosen the best response.2if it is just an accident, the car's position should be as shown. But it is not, it is here dw:1433513523649:dw

Loser66
 one year ago
Best ResponseYou've already chosen the best response.2Parametric equations answer those question. If you understand why we have to know them, it inspires you a lllllllllllot

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0tell me one thing, \[\vec r=<3,4,5>\] is this the same as \[3i+4j+5k\]

Loser66
 one year ago
Best ResponseYou've already chosen the best response.2Have you ever take linear algebra??

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I've studied vectors but I've never seen this notation in my school

Loser66
 one year ago
Best ResponseYou've already chosen the best response.2Do you accept 1 dimension?

Loser66
 one year ago
Best ResponseYou've already chosen the best response.2Do you understand number line? it is 1 dimension dw:1433513798994:dw

Loser66
 one year ago
Best ResponseYou've already chosen the best response.2Do you accept 2 dimensions? dw:1433513841395:dw

Loser66
 one year ago
Best ResponseYou've already chosen the best response.2How about 3 dimensions?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yes, but how is that relevant?I simply wanted to know what those notations were for, I've never seen them before.

Loser66
 one year ago
Best ResponseYou've already chosen the best response.21Dyes 2Dyes 3Dyes why not 4D, 5D.......nD??? Because you don't know them, you reject them? so that you said "that's a really stupid notation when u could just say we're working in 3 dimensions!!!"

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Is it also correct to say that if \[\vec r(t)=<f(t),g(t),h(t)>\]\[\vec r(t)=f(t)i+g(t)j+h(t)k\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Alright I understand this notation now

Loser66
 one year ago
Best ResponseYou've already chosen the best response.2the t in \(r(t),f(t), g(t)\) shows all function are w.r.t t

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I'm not rejection higher dimensions but if you're working in 4 dimensions u can simply say in 4 dimensional space

Loser66
 one year ago
Best ResponseYou've already chosen the best response.2and the comma or i, j, k show they are linearly independent variable.

Loser66
 one year ago
Best ResponseYou've already chosen the best response.2But they are all relate to each other. In \(\mathbb R^3\) when x =0, it can't become \(\mathbb R^2\)
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.