My Math Forum  

Go Back   My Math Forum > College Math Forum > Calculus

Calculus Calculus Math Forum


Reply
 
LinkBack Thread Tools Display Modes
May 19th, 2014, 07:11 AM   #1
Member
 
Joined: Feb 2014

Posts: 30
Thanks: 0

Parametrize

Can you help me with the parametrization of the curve C being 3/4 circle of radius 2 centered at the origin traversed from (2,0) to (0,-2)?
Thank you
My guess is $\displaystyle x=\sqrt{2}cost \ and \ y=\sqrt{2}sint \ where \ 0<t<3\frac{\pi}{2}$

Last edited by maluita659; May 19th, 2014 at 07:26 AM.
maluita659 is offline  
 
May 19th, 2014, 01:16 PM   #2
Global Moderator
 
Joined: May 2007

Posts: 6,806
Thanks: 716

Quote:
Originally Posted by maluita659 View Post
Can you help me with the parametrization of the curve C being 3/4 circle of radius 2 centered at the origin traversed from (2,0) to (0,-2)?
Thank you
My guess is $\displaystyle x=\sqrt{2}cost \ and \ y=\sqrt{2}sint \ where \ 0<t<3\frac{\pi}{2}$
Looks good. Implicit assumption is going counterclockwise.
mathman is offline  
May 19th, 2014, 01:52 PM   #3
Member
 
Joined: Feb 2014

Posts: 30
Thanks: 0

Quote:
Originally Posted by mathman View Post
Looks good. Implicit assumption is going counterclockwise.
Thank you
maluita659 is offline  
May 19th, 2014, 02:18 PM   #4
Member
 
Joined: Feb 2014

Posts: 30
Thanks: 0

Oh it should be 2cost and 2sint
maluita659 is offline  
May 19th, 2014, 02:49 PM   #5
Member
 
Joined: Feb 2014

Posts: 30
Thanks: 0

F(x-y,xy)
$\displaystyle \int_C{F \cdot dr}$ is positive right?
Thank you
maluita659 is offline  
May 20th, 2014, 04:00 PM   #6
Global Moderator
 
Joined: May 2007

Posts: 6,806
Thanks: 716

Quote:
Originally Posted by maluita659 View Post
Oh it should be 2cost and 2sint
You are right
mathman is offline  
Reply

  My Math Forum > College Math Forum > Calculus

Tags
3 or 4, circle, clockwise, parametrize



Search tags for this page
Click on a term to search for related topics.
Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
How to parametrize this curve? chrishaig Algebra 1 June 1st, 2013 10:12 AM
2 Vectors clockwise directions gtopcu Algebra 2 October 3rd, 2011 05:04 AM
2D shape clockwise, counter-clockwise? [solved] sonicmouse Algebra 5 January 23rd, 2010 08:41 PM
Clockwise rotation angle J-a-m-e-s Linear Algebra 1 August 7th, 2009 07:40 AM
How to parametrize this curve? chrishaig Real Analysis 1 December 31st, 1969 04:00 PM





Copyright © 2019 My Math Forum. All rights reserved.