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Maths question

I can't remember what the squiggly thing is in this equation:

http://upload.wikimedia.org/math/9/c/9/9c97ac83319da4c3e0eb7f0b2e69bd2b.png

I realise it is a math doohicky which stands for some complicated equation wozit, but I forget what that is. Help?

Comments

( 6 comments — Leave a comment )
aeduna
Feb. 21st, 2006 04:33 am (UTC)
the integral sign at the front?
miss_rynn
Feb. 21st, 2006 04:35 am (UTC)
Yes. Because I'm full of dumb. Also, I haven't done any maths since 1996.
aeduna
Feb. 21st, 2006 04:37 am (UTC)
I only remember what it is because there's a Larry Niven novel called the Integral Trees.... if pushed, I could /maybe/ do simple integration .... 1991 was my last formal maths class.
miss_rynn
Feb. 21st, 2006 04:43 am (UTC)
Unfortunately, this ain't no simple integration. It has to do with the Forster radius, and 'J' (above) is only a small part of the nasty equation. Sigh.
lukeii
Feb. 21st, 2006 05:33 am (UTC)
Without endpoints on the integral, it means it's an indefinite integral or antiderivative.
(Anonymous)
Feb. 21st, 2006 06:54 am (UTC)
symbol
http://whatis.techtarget.com/definition/0,,sid9_gci803019,00.html

Old, but not dumb.
( 6 comments — Leave a comment )