Search the web
Sign In
New User? Sign Up
Hyacinthos · We discuss themes on Triangle Geometry

Group Information

  • Members: 591
  • Category: Geometry
  • Founded: Dec 22, 1999
  • Language: English
? Already a member? Sign in to Yahoo!

Yahoo! Groups Tips

Did you know...
Want to share photos of your group with the world? Add a group photo to Flickr.

Best of Y! Groups

   Check them out and nominate your group.
Visit the Groups blog for the latest Yahoo! Groups information

Home

 

Activity within 7 days:

Description

We discuss themes on Triangle Geometry (Triangle Points / Lines / Circles, Conics, Cubics etc)

List Owner: Antreas P. Hatzipolakis (in Greece)

__________________________________

List Owner's Other Group ANOPOLIS and Blog ANOPOLIS.

Most Recent Messages

  (View All)
(Group by Topic)
Advanced
   Start Topic
Re: h-conjugate
I think that in general we have: Let 123456 be a hexagon whose the diagonals 14,25,36 concur at a point 0. For any point P the circuumcircles of P14, P25, P36
Posted - Tue Mar 16, 2010 9:34 pm
Antreas
xpolakis
Offline Offline
Send Email Send Email
Re: h-conjugate
Dear Francois, Francisco, Antreas, hP is the orthoassociate of P i.e. the inverse of P in the polar circle. see my paper about orthocorrespondence. Best
Posted - Mon Mar 15, 2010 2:33 pm
Bernard Gibert
bernardgibert
Offline Offline
Send Email Send Email
Re: h-conjugate
It seems to me that the map P --> hP is the inversion of pole H and power p/2 where p is the power of H wrt the circumcircle? Friendly Francois
Posted - Mon Mar 15, 2010 2:23 pm
Francois Rideau
francoisrideau
Offline Offline
Send Email Send Email
Re: Miquel and Euler
Thanks you Eric The product of X(4) and X(99) is the Miquel point of the orthic axe, tripolaire of X(4); this points belongs the the Steiner Ellips Where is
Posted - Mon Mar 15, 2010 12:55 pm
Michel
michgarl
Offline Offline
Send Email Send Email
Re: Miquel and Euler
Dear Michel, your point is X(1304) Kind regards Eric
Posted - Mon Mar 15, 2010 9:02 am
Eric
efn4900
Offline Offline
Send Email Send Email
Add Hyacinthos to your personalized My Yahoo! page Add to My Yahoo! XML What's This?

Message History

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
2010 56 79 57
2009 70 137 105 220 182 121 139 154 86 87 52 68
2008 128 75 70 96 96 84 103 105 95 121 58 117
2007 124 133 182 133 53 45 39 88 100 179 126 87
2006 129 108 348 378 235 324 356 270 109 168 152 138
2005 72 42 62 83 66 51 100 57 83 119 75 181
2004 271 259 196 135 64 143 220 163 213 286 69 54
2003 222 165 225 234 136 103 84 315 343 440 246 147
2002 104 149 235 226 291 123 75 51 41 116 62 147
2001 180 58 181 68 188 224 149 371 327 237 216 148
2000 172 172 269 111 112 147 59 173 217 164 238 329
1999 44
What is Yahoo! Answers?

Yahoo! Answers, a new Yahoo! community, is a question and answer exchange where the world gathers to share what they know...and make each other's day. People can ask questions on any topic, and help others out by answering their questions.

What is Yahoo! Answers?

Yahoo! Answers, a new Yahoo! community, is a question and answer exchange where the world gathers to share what they know...and make each other's day. People can ask questions on any topic, and help others out by answering their questions.

Questions in Science & Mathematics > Mathematics

  • Questions are currently unavailable.

Want to help answer other questions? Go to Yahoo! Answers

Group Email Addresses


Copyright © 2010 Yahoo! Inc. All rights reserved.
Privacy Policy - Terms of Service - Guidelines - Help