MathGroup Archive 2004

[Date Index] [Thread Index] [Author Index]

Search the Archive

vector integral

  • To: mathgroup at
  • Subject: [mg49814] vector integral
  • From: "quest04" <na at>
  • Date: Tue, 3 Aug 2004 01:10:46 -0400 (EDT)
  • Reply-to: "quest04" <na at>
  • Sender: owner-wri-mathgroup at

I have a question and was wondering if someone could help me with it.  This
is a general vector calculus problem, not specific to Mathematica.  I have a
simple integral as follows:
Given r^2= x^2+y^2, solve Integral[r^2, dr] along vector defined by point1
(0,0) to point2
(1,1), which would be evaluated from r=0 to r=sqrt[2] and gives answer =
The above is pretty simple, however, I am not sure how to formulate the
problem when I convert the 'dr' back to cartesian coordinates as follows:
Integrate [x^2+y^2, d????] and the limits???  WHat should 'dr' be in terms
of dx? if my integrand is directly x^2+y^2.  It cannot be a double integral,
since the original problem was a single integral, but then how do you solve
Can anyone help?


  • Prev by Date: integral question
  • Next by Date: Re: How to code Conjugate Gradient Method
  • Previous by thread: RE: integral question
  • Next by thread: Re: vector integral