Hmmm ... never seen square root as O with dot-dot on top. Jamie WB4YDL
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of S55M Sent: Wednesday, March 30, 2005 2:47 PM To: Elecraft Subject: Re: [Elecraft] OT: math question Yes math is beautifull (callculating needed space for 3d antennas HI. But google can spare some time and paper. :) http://home.att.net/~numericana/answer/algebra.htm#quartic ----- Original Message ----- From: "Dan Barker" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]>; "Elecraft" <[email protected]> Sent: Wednesday, March 30, 2005 10:22 PM Subject: RE: [Elecraft] OT: math question > I ran into a brain-teaser once, that had me baffled for hours (I won't say > how many). Finally, I called my sister, the Rocket Scientist ("actually, > we're not _Rocket_ scientists" - That's a quote from her husband) and asked > her. > > She and Paul spent a few minutes on the problem, figured it out, but it was > such a trivial answer they threw it away. Since I'd spent so long on the > Question, I gave her about a week and then I called back. Luckily they'd not > taken out the trash, so she easily found their notes and read them to me. > > I won't spoil it for you 'crafters. > > Dan / WG4S / K2 #2456 > > Problem: An alley has a 20-foot ladder across it, in the left lower corner > and leaning on the right wall. There also is a 30-foot ladder, from the > right lower corner leaning on the left wall. The laders cross at 10 feet > high. > > How wide is the alley? > > Usual conventions: alley is all right angles, ladders have no thickness nor > bends, blah blah blah... > > This should make some juices flow out there. Just simple geometry, or is it? > > > PS: Iteration is cheating. Sorry Issac. > > > <snip> > the responses would be far more interesting than merely "looking up" the > answer > </snip> > > _______________________________________________ > Elecraft mailing list > Post to: [email protected] > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
