Đường thẳng Euler (Vietnamese Wikipedia)

Analysis of information sources in references of the Wikipedia article "Đường thẳng Euler" in Vietnamese language version.

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3doi.org

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2worldcat.org

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2ams.org

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1dartmouth.edu

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1ijgeometry.com

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ams.org

Euler, Leonhard (1767). “Solutio facilis problematum quorundam geometricorum difficillimorum” [Easy solution of some difficult geometric problems]. Novi Commentarii Academiae Scientarum Imperialis Petropolitanae. 11: 103–123. E325. Reprinted in Opera Omnia, ser. I, vol. XXVI, pp. 139–157, Societas Scientiarum Naturalium Helveticae, Lausanne, 1953, MR 0061061. Summarized at: Dartmouth College.
Edmonds, Allan L.; Hajja, Mowaffaq; Martini, Horst (2008), “Orthocentric simplices and biregularity”, Results in Mathematics, 52 (1–2): 41–50, doi:10.1007/s00025-008-0294-4, MR 2430410, S2CID 121434528, It is well known that the incenter of a Euclidean triangle lies on its Euler line connecting the centroid and the circumcenter if and only if the triangle is isosceles.

books.google.com

Euler, Leonhard (1767). “Solutio facilis problematum quorundam geometricorum difficillimorum” [Easy solution of some difficult geometric problems]. Novi Commentarii Academiae Scientarum Imperialis Petropolitanae. 11: 103–123. E325. Reprinted in Opera Omnia, ser. I, vol. XXVI, pp. 139–157, Societas Scientiarum Naturalium Helveticae, Lausanne, 1953, MR 0061061. Summarized at: Dartmouth College.
Schattschneider, Doris; King, James (1997). Geometry Turned On: Dynamic Software in Learning, Teaching, and Research. The Mathematical Association of America. tr. 3–4. ISBN 978-0883850992.

dartmouth.edu

math.dartmouth.edu

Euler, Leonhard (1767). “Solutio facilis problematum quorundam geometricorum difficillimorum” [Easy solution of some difficult geometric problems]. Novi Commentarii Academiae Scientarum Imperialis Petropolitanae. 11: 103–123. E325. Reprinted in Opera Omnia, ser. I, vol. XXVI, pp. 139–157, Societas Scientiarum Naturalium Helveticae, Lausanne, 1953, MR 0061061. Summarized at: Dartmouth College.

doi.org

Parry, C. F. (tháng 3 năm 2001). “Triangle centers and central triangles, by Clark Kimberling (Congress Numerantium Vol. 129) Pp. 295. $42.50 1998. ISSN 0316-1282 (Utilitas Mathematica Publishing, Inc., Winnipeg)”. The Mathematical Gazette. 85 (502): 172–173. doi:10.2307/3620531. ISSN 0025-5572. line feed character trong |title= tại ký tự số 73 (trợ giúp)
Edmonds, Allan L.; Hajja, Mowaffaq; Martini, Horst (2008), “Orthocentric simplices and biregularity”, Results in Mathematics, 52 (1–2): 41–50, doi:10.1007/s00025-008-0294-4, MR 2430410, S2CID 121434528, It is well known that the incenter of a Euclidean triangle lies on its Euler line connecting the centroid and the circumcenter if and only if the triangle is isosceles.

dx.doi.org

Parry, C. F. (tháng 3 năm 2001). “Triangle centers and central triangles, by Clark Kimberling (Congress Numerantium Vol. 129) Pp. 295. $42.50 1998. ISSN 0316-1282 (Utilitas Mathematica Publishing, Inc., Winnipeg)”. The Mathematical Gazette. 85 (502): 172–173. doi:10.2307/3620531. ISSN 0025-5572. line feed character trong |title= tại ký tự số 73 (trợ giúp)

evansville.edu

faculty.evansville.edu

X(4240) = DAO TWELVE EULER LINES POINT

fau.edu

forumgeom.fau.edu

“FG200924index”.

ijgeometry.com

Telv Cohl, 'Dao's Theorem on the Concurrence of Three Euler Lines,' International Journal of Geometry 3 (2014) 70-73

journal-1.eu

Dao Thanh, Oai (2016). “A generalization of the Zeeman-Gossard perspector theorem”. Trong Deko, Dekov (biên tập). International Journal of Computer Discovered Mathematics (PDF). 1. tr. 76–79. ISSN 2367-7775.

semanticscholar.org

api.semanticscholar.org

Edmonds, Allan L.; Hajja, Mowaffaq; Martini, Horst (2008), “Orthocentric simplices and biregularity”, Results in Mathematics, 52 (1–2): 41–50, doi:10.1007/s00025-008-0294-4, MR 2430410, S2CID 121434528, It is well known that the incenter of a Euclidean triangle lies on its Euler line connecting the centroid and the circumcenter if and only if the triangle is isosceles.

worldcat.org

Parry, C. F. (tháng 3 năm 2001). “Triangle centers and central triangles, by Clark Kimberling (Congress Numerantium Vol. 129) Pp. 295. $42.50 1998. ISSN 0316-1282 (Utilitas Mathematica Publishing, Inc., Winnipeg)”. The Mathematical Gazette. 85 (502): 172–173. doi:10.2307/3620531. ISSN 0025-5572. line feed character trong |title= tại ký tự số 73 (trợ giúp)
Dao Thanh, Oai (2016). “A generalization of the Zeeman-Gossard perspector theorem”. Trong Deko, Dekov (biên tập). International Journal of Computer Discovered Mathematics (PDF). 1. tr. 76–79. ISSN 2367-7775.