>
New Topic
>
Reply<
Esato Forum Index
>
General discussions >
Non mobile discussion
> The Maths Thread!
Bookmark topic
eidt:lets confine this craze to one thread, then!
Ok, since everyone is posting their math homework, i decided to post soemthing from 6 chapters ahead, just so i get a head start.
find the area of the part of the parabloid z=x^2+y^2 that lies under the plane z=9
oh and prove that something can have an infinite surface area but a limited volume.
the prize?
You get a electronic pat on the back (fine, a gmail account if you want) and you get to go, "nanny nanny nanny, im smarter than you, esato!"
_________________
Home
Is the quiet place where you should be alone
Is this where the tortured and the troubled find their own
so co.
"conspiraqcy theories"-meths
v=
[ This Message was edited by: kimcheeboi on 2004-10-21 23:31 ]
--
Posted: 2004-10-21 20:15:00
Edit :
Quote
--
Posted: 2004-10-21 20:19:44
Edit :
Quote
what the heck's a parabloid?
like a parabola?? haven't even heard ot it!!
hmm...5 papers of math in engineering and i still can't solve it!!!
--
Posted: 2004-10-21 20:45:46
Edit :
Quote
I'm not the only one.!
This message was posted from a T610
--
Posted: 2004-10-21 20:54:49
Edit :
Quote
I would try and answer, but we haven't covered co-ordinate geometry in the x,y,z planes in maths yet, only x,y.
_________________
This message was posted from a coconut
[ This Message was edited by: maddav on 2004-10-21 19:57 ]
--
Posted: 2004-10-21 20:56:33
Edit :
Quote
i'll give you all hints
the first problem is solved with applying a simple double integral. A parabloid is a 3-d parabola.
problem 2:
use y=e^(-x), or something like that (gabriel's horn)
--
Posted: 2004-10-21 21:18:00
Edit :
Quote
Its not parabloid, its paraboloid and if memory serves this is a calculus question, specifically double integrals but again its been a very long time since I had to do this, in fact not since my scientific programming work at Plessey Research in the late 70's early 80's.
given that info I'll leave it for someone else to work out but its got my interested enough to read some of my old text books at the weekend because I always found calculus fun!
edit: oh! looks like you were giving the clues as I was writing this! oh well....
_________________
...Unless I'm very much mistaken
my K700 review[ This Message was edited by: masseur on 2004-10-21 20:20 ]
--
Posted: 2004-10-21 21:20:02
Edit :
Quote
Weekends at the Masseur house must be great fun! Seriously calculus? You must've been quite a nerd during school. Okay kim for the second one, you can use limits, so when area tends to infinity... You solve along those lines. Its 1am, will do the rest tomm:-).
This message was posted from a T630
--
Posted: 2004-10-21 21:37:43
Edit :
Quote
Hey, I'm doing calculus next year. No fair
--
Posted: 2004-10-21 21:41:42
Edit :
Quote
@plasmadog,
no, just once in a while when something like this comes up it sparks my interest. its that or helpmy wife with her craft activities
I was definitly no nerd at school, just top of the maths class but that was about the only subject I was top at, except IT which was brand new at my school in those days... punch cards and paper tape!
but we digress... I'm hoping someone will solve this soon
--
Posted: 2004-10-21 21:45:11
Edit :
Quote
New Topic
Reply
