29.01.2013 Views

Problems in Mathematical Analysis.pdf - pwp.net.ipl.pt

Problems in Mathematical Analysis.pdf - pwp.net.ipl.pt

Problems in Mathematical Analysis.pdf - pwp.net.ipl.pt

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

274 Mult<strong>ipl</strong>e and L<strong>in</strong>e Integrals [Ch. 7<br />

Example 1. Evaluate the l<strong>in</strong>e <strong>in</strong>tegral<br />

where C is the contour of the triangle ABO with vertices A (1, 0), B (0, 1),<br />

and 0(0, 0) (Fig 101).<br />

Solution. Here, the equation AB is (/=l x, the equation OB is x = 0,<br />

and the equation OA is */ = 0. We therefore have<br />

AB BO OA<br />

2. L<strong>in</strong>e <strong>in</strong>tegrals of the second type. If P (x, y) and Q (x, y) are cont<strong>in</strong>uous<br />

functions and = f/

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!