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integrate this

Blogs > azndsh
Post a Reply
azndsh
Profile Blog Joined August 2006
United States4447 Posts
Last Edited: 2008-03-25 19:15:24
March 25 2008 16:16 GMT
#1
this is what my friends do when they're bored at 5am -- try to evaluate things like:

int( ln(sin(x)), x, 0, pi/2 )

edit: by hand, of course

**
davidgurt
Profile Joined September 2006
United States1355 Posts
March 25 2008 16:48 GMT
#2
http://integrals.wolfram.com/index.jsp
There's crashing?
Boblion
Profile Blog Joined May 2007
France8043 Posts
March 25 2008 16:50 GMT
#3
Your friends are awesome xD
fuck all those elitists brb watching streams of elite players.
glassmazarin
Profile Blog Joined October 2007
Sweden158 Posts
March 25 2008 16:52 GMT
#4
how do i read the ","?

i.e what is int( ln(sin(x)), 0)
OrderlyChaos
Profile Blog Joined June 2007
United States1115 Posts
March 25 2008 16:54 GMT
#5
It looks like calculator notation. i.e. you'd read it the integral of ln(sin(x)) with respect to x from 0 to pi/2

Unless I'm wrong.
Oxygen
Profile Blog Joined November 2003
Canada3581 Posts
March 25 2008 17:44 GMT
#6
On March 26 2008 01:54 OrderlyChaos wrote:
It looks like calculator notation. i.e. you'd read it the integral of ln(sin(x)) with respect to x from 0 to pi/2

Unless I'm wrong.


I think that's how you read it.
Dont drink and derive. TSL: Made with Balls.
Last Romantic
Profile Blog Joined June 2006
United States20661 Posts
March 25 2008 17:45 GMT
#7
go away princeton boy
ㅋㄲㅈㅁ
blabber
Profile Blog Joined June 2007
United States4448 Posts
March 25 2008 17:48 GMT
#8
On March 26 2008 01:54 OrderlyChaos wrote:
It looks like calculator notation. i.e. you'd read it the integral of ln(sin(x)) with respect to x from 0 to pi/2

Unless I'm wrong.

I bolded the answer for ya
blabberrrrr
mikeymoo
Profile Blog Joined October 2006
Canada7170 Posts
March 25 2008 17:50 GMT
#9
Wolfram is a godsend.
o_x | Ow. | 1003 ESPORTS dollars | If you have any questions about bans please PM Kennigit
dinmsab
Profile Blog Joined January 2008
Malaysia2246 Posts
March 25 2008 18:10 GMT
#10
On March 26 2008 01:50 Boblion wrote:
Your friends are awesome xD


its friends like these that usually helps you get through college. :0
..
Luddite
Profile Blog Joined April 2007
United States2315 Posts
March 25 2008 18:42 GMT
#11
On March 26 2008 01:48 davidgurt wrote:
http://integrals.wolfram.com/index.jsp

heh, exactly what i thought of.
Can't believe I'm still here playing this same game
Response
Profile Blog Joined April 2004
United States1936 Posts
March 25 2008 19:07 GMT
#12
wow that wolfram site is gosu
the REAL ReSpOnSe
TheMusiC
Profile Joined January 2004
United States1054 Posts
March 25 2008 20:25 GMT
#13
lol yang

go use that princeton education, baby
Muirhead
Profile Blog Joined October 2007
United States556 Posts
March 25 2008 20:31 GMT
#14
This is Putnam 1953/A5
There is a nice solution using sin(x)=2sin(x/2)cos(x/2), but it's also possible directly apply complex analysis (the residue theorem)
starleague.mit.edu
BuGzlToOnl
Profile Blog Joined November 2006
United States5918 Posts
Last Edited: 2008-03-25 20:52:14
March 25 2008 20:51 GMT
#15
Had a test on this week before spring break, scores are as follows:

2 As (one of the guys already has his degree in math and is like a student teacher, the other is like a savant he can't really communicate with the people around him and wont stfu, these guys ruin the curve for eveyone lol )
2 Bs (decent)
4 Cs (expected)
4 Ds (me )

The rest (14 students) failed. haha :p
If you want to make God laugh, tell Him your plans.
omgbnetsux
Profile Blog Joined April 2004
United States3749 Posts
March 25 2008 21:05 GMT
#16
I am so glad that I never have to do calculus again.
Rev0lution
Profile Blog Joined August 2007
United States1805 Posts
March 25 2008 21:26 GMT
#17
i got 100 on my calculus 3 first test :3
My dealer is my best friend, and we don't even chill.
quirinus
Profile Blog Joined May 2007
Croatia2489 Posts
March 26 2008 00:16 GMT
#18
ez stuff once you know the residuum theorem and complex analysis.

don't feel like doing it now though, should get to sleep.
All candles lit within him, and there was purity. | First auto-promoted BW LP editor.
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