# infinity equation,,,,help!

• Mar 12th 2008, 07:05 PM
cgoplin
infinity equation,,,,help!
don't know how to show this equation on screen E smallx2 right hand corner then space dx +infinity symbol on top - infinity symbol on bottom with two fishhooks? oposing what is it? please help!
• Mar 12th 2008, 07:11 PM
TheEmptySet
Quote:

Originally Posted by cgoplin
don't know how to show this equation on screen E smallx2 right hand corner then space dx +infinity symbol on top - infinity symbol on bottom with two fishhooks? oposing what is it? please help!

$\int_{\gamma-i \infty}^{\gamma+i \infty}f(z)dz$

If this is the case it is called a contour integral. It requires the use of complex variables.
• Mar 12th 2008, 07:36 PM
ThePerfectHacker
Fishhooks (Rofl)