Alphabetical index of terms in ETC

César E. Lozada - December 23, 2019
Last update: 2022-03-14 - Revision 11 up to X(47269) - Total references: 948



Aiyar-circle X(13870) anti-altimedial triangles X(15015) antiparallels conics X(41380) Artzt circle X(11168)
Ajima-Malfatti points X(179) anti-Artzt circle X(11168) antitomic conjugate X(14941) Artzt triangle X(9742)
altimedial triangle X(15015) anti-Artzt triangle X(11147) Antlia triangle X(5574) Ascella triangle X(8726)
Altintas circle X(20033) anti-McCay triangle X(8587) apedal conic X(8268) ATFF points X(10129)
Altintas hyperbola X(15449) anti-orthocentroidal circle X(467) apollonian circles of mixtilinear triangles X(8162) Atik triangle X(5927)
Altintas-isodynamic triangles X(41016) anti-triangles X(11363) Apollonius point X(181) Atik triangle X(8580)
Altintas-Lozada-Neuberg line X(35049) anti-triangles X(18909) Apollonius tangent line X(2254) Aubert points 1st and 2nd X(45010)
Altintas-Moses-Neuberg hyperbola X(46816) anti-Ursa minor triangle X(23291) Apus triangle X(5584) Auriga triangles X(5597)
always perspective triangles X(15428) anti-Wasat triangle X(21616) Aquarius conic X(5585) Ayme perspector X(3657)
always-orthologic triangles X(36958) anticenter X(10276) Aquila triangle X(5586) Ayme triangle X(3610)
Andromeda triangle X(5573) anticevian-associated cubic X(40853) Ara triangle X(5594) Ayme-Moses perspectors X(3610)
Anna's circle X(34768) antigonal conjugate X(14941) areal centers X(35307)
answer to question A X(554) antigonal images X(37831) Aries triangle X(5596)


B- or (B)- line conjugates X(45266) Bevan antipodal triangle X(223) bisecting circle X(7623) Brocard triangles 7th, 8th and 9th X(39801)
Bailey point X(401) Bevan point X(40) Blaikie transform X(903) Brocard triangles 7th, 8th, 9th X(39643)
Bankoff equilateral triangle X(34551) Bevan-antipodal triangle X(34488) Bloom point X(40139) Brocard(P,U)-harmonic conjugate of X X(14953)
barycentric cubes X(23606) Bevan-Schroeder point X(1319) Bradley bicevian points and axes X(41202) Brocard-Euler points of type 1 X(21509)
barycentric product of circumcircle antipodes X(32640) bi-anticevian conics X(35513) Brisse transform X(1354) Brocard-Kiepert-Fermat cusp X(3411)
barycentric square of the Euler line X(36412) bicentric pairs, circles through X(35374) Brocard antipedal hyperbola X(43702) Brocard-Lemoine conic X(14941)
barycentric squares X(23582) bicentrically induced harmonic conjugates X(14953) Brocard axes concurrences X(15766) BSS X(14078)
barycentric squares X(23962) bicevian triangles X(40632) Brocard axis intercepts 37469-37517 X(37469) Burek concurrent circles images X(5523)
barycentric symbolic substitution (BSS) X(14078) bipedal circumcentral conic (BPC conic) X(41537) Brocard equilateral triangle X(3104) Burek-cevian conic X(5777)
Beltrami-Euler point X(3568) bipedal circumcentral line (BPC-line) X(41537) Brocard midpoint X(39) Burgess point X(1133)
Beltrami-Parry point X(3569) bireflection circumcentral conic (BRC-conic) X(41684) Brocard point, 3rd X(73)
Beth conjugates X(1393) bireflection circumcentral line (BRC-line) X(41684) Brocard square X(3102)


Caelum triangle X(5602) CIR(U) X(2365) circumparabolas, foci of X(38017) Conway triangle X(7411)
Calaeno points X(30103) circle of similitude X(8072) circumperp conjugate X(18859) Crimean points X(41890)
Caucasian points X(41890) circlecevian perspectors X(39389) circumtangential-isogonal conjugates X(8666) cross-perspeconics X(15648)
CCC cubics X(40718) circlecevian triangle X(34520) Clawson point X(19) cross-triangles X(10290)
center of involution X(14782) circles inversion circles X(39486) Clifford (4)/(5)/(6) centers X(11634) crossdifferences X(46380)
center of similitude X(7693) circles inversion circles X(39559) cnic (circumnormal-isogonal conjugate) X(8715) crosssums of circumcircle-P-antipodes X(38957)
centers and perspectors of inverses of lines in Steiner ellipses X(44550) circles inversor X(5577) co-Brocard circles X(43118) CT-perspectors X(45810)
centers of circles through X(24007) and X(24008) X(44202) circles through couples of bicentric pairs X(35374) coefficient point X(8551) ctc (Gibert circumtangential conjugate) X(8616)
centers of circumcircle-inverses of lines X(44805) circles through X(13) and X(14) X(42731) collineation images X(16544) ctic (circumtangential-isogonal conjugate) X(8666)
central angle points X(42614) circum-eigencenters X(6570) collineation images X(16678) cubic K1230, points on X(43448)
centroid X(2) circum-eigentransform X(6570) collineation images X(17043) cubic K588, centers on X(42676)
centroid of curvatures X(31393) circum-Euler-points X(38723) collineation images X(17134) cubic X(24727) X(24727)
centroid of three points on the circumcircle X(35258) circumcenter X(3) collineation images X(17738) cubic X(24733) X(24733)
centroidal conics X(10153) circumcenters of circumcevian polar triangles X(39382) collineation images on the Euler line X(16286) cubics, points on X(39693)
centroidal triangles X(10153) circumcenters of circumcevian polar triangles X(39628) collineations inverse-images X(18588) cubics, points on X(39765)
centroids of quadrilateral X(6666) circumcevian triangles and their inverses X(43344) Collings transform X(1286) cubics, points on X(39942)
centroids of triangles with central vertices X(38021) circumcevian triangles and their inverses X(46961) common circumconics X(14713) cubics, points on X(39994)
CET(U) X(6570) circumcevian-inversion triangle X(34864) congruent incircles isoscelizer point X(258) cubics, points on X(40009)
Ceva conics, 1st X(40530) circumcevian-inversion triangle of X(3) X(35237) congruent incircles point X(5394) cubics, points on special X(46706)
Ceva conics, 2nd X(40578) circumcircle inversion circles X(39475) congruent shrunk insquares points X(585) cubics, points on special X(46738)
cevapoint conics X(40462) circumcircle-F-antipode of U X(26700) congruent squares point X(371) cubics, points on special X(46779)
cevian centroid isogonal perspectors X(39667) circumcircle-inverses of points on the Euler line X(37896) conjugate-couple X(14782) cubics, points on special X(46826)
cevian-circumconic triangles X(36598) circumnormal-isogonal conjugates X(8715) Conway 2nd triangle X(9776) cubics, points on special X(46877)
cevian-cross triangle X(40718) circumorthiac triangle X(40928) Conway 3rd, 4th, 5th triangles X(10434) Cullen cubic K369 X(42413)
cevian-cross triangles X(40840) circumparabola with center X(513), points on X(42921) Conway circle, points associated X(38473) cyclologic centers X(34578)
cip transform X(39371) circumparabola with infinite center X(43935) Conway inner triangle X(11677) cyclologic centers X(37743)


Danneels perspectors X(3119) Dao-Apollonius circles X(13443) Darboux quintic point X(11589) Dolgirev-Hatzipolakis-Lozada point X(6585)
Danneels points X(3078) Dao-bipedal conic / perspector X(18840) DC and CD points X(2979) dominican images X(5565)
Danneels points X(8012) Dao-conjugates X(44687) De Longchamps line, points on X(35516) Dosa point X(3554)
Danneels-Apollonius perspector X(2092) Dao-image X(15345) De Longchamps point X(20) Dou circle X(155)
Dao (a, b, c, R) perspector X(6188) Dao-Lester circles X(42740) De Villers point, 1st X(1127) Dou circle X(9718)
Dao circle X(10097) Dao-Lozada tangential perspector X(42622) De Villers point, 2nd X(1128) double-points of an involution X(14782)
Dao equilateral triangles, 1st & 2nd X(16038) Dao-Moses-Telv circle X(6103) Dedalus point X(40141) Droussent pivot X(316)
Dao perspector X(18212) Dao-Parry circles X(42740) degree 3-centers with coefficients in {-1,0,1} X(32771) dual of the circumcircle, points on X(36789)
Dao point X(10097) Dao-perspeconics X(40051) dilations of points on the circumcircle to other circles X(38497) dual of the incircle, points on X(36795)
Dao triangle X(45738) Dao-symmedial circle X(5092) dilations of points on the circumcircle to other circles (38551-38719) X(38551) Dual triangles X(2979)
Dao twelve Euler lines point X(4240) Dao-Vecten circles X(6118) direction of vector X(527) duple triangles X(30543)
Dao-6 point circle X(5569) Darboux image X(5881) Dixit points X(3590)


Ehrmann 2nd triangle X(8537) Electra(B) triangles X(45196) ET(U) X(2120) eulerologic triangles and centers X(10237)
Ehrmann circle and A, B-,C- Ehrmann circles X(8537) elestrostatic potential center X(5626) Euler infinity point X(30) Evans conic, points on X(41943)
Ehrmann congruent squares point X(1144) ellipsologig centers X(34773) Euler line intercepts 37009-37127 X(37009) Evans perspector, 1st X(484)
Ehrmann pivots / triangles X(18300) endo homothetic centers X(7581) Euler line intercepts 37144-37201 X(37144) Evans perspectors X(1276)
Ehrmann point, 3rd X(1145) Eppstein points X(481) Euler line intercepts 37224-37468 X(37224) Evans point X(1374)
Ehrmann points X(973) equal areas isoscelizer point X(364) Euler line intercepts with tangent lines to circumcircle X(46585) even infinity point X(696)
Ehrmann-1 or 1-Ehrmann circle X(34112) equal detour point X(176) Euler lines concurrences X(15766) excosine circle / conic / triangles X(17807)
Ehrmann-Lozada ellipse X(9731) equal perimeters isoscelizer point X(363) Euler substitutions points X(409) Exeter point X(22)
Eigencenters X(2120) equi-Brocard center X(368) Euler(P,U)-harmonic conjugate of X X(14953) extouch triangles 2nd to 5th X(5927)
eigencenters of circumcevian/circumanticevian triangles X(39412) equiareality center X(5373) Euler-Morley-Zhao point X(5390) extra triangles X(7001)
eigentransform X(2120) equicenters X(38344) Euler-Vecten-Gibert points X(2041)
Electra triangles X(45216) equilateral cevian triangle point X(370) eulerologic centers 2 X(16189)


Far-out point X(23) Fermat-Dao equilateral triangles, 15th & 16th X(16960) Fermat-Dao-Nhi triangles, orthologic centers X(36318) Fregier points X(30181)
Farhangi-cyclocevian images X(8043) Fermat-Dao equilateral triangles, 1st & 2nd X(16247) Feuerbach antipode X(119) Fuhrmann center X(355)
Fermat point X(13) Fermat-Dao equilateral triangles, 3rd & 4th X(16267) Feuerbach line X(5499) Fuhrmann triangles X(16112)
Fermat triangles, inner/outer X(16646) Fermat-Dao equilateral triangles, 5th & 6th X(16459) Feuerbach point X(11)
Fermat-Dao equilateral triangles, 11th & 12th X(16626) Fermat-Dao equilateral triangles, 9th & 10th X(16536) Feuerbach quadrangle X(10276)
Fermat-Dao equilateral triangles, 13th & 14th X(16636) Fermat-Dao-Nhi triangles X(33602) Feuerbach tangent line X(2254)


G mapping X(3112) generalized Paasche conics, points Associated X(38310) Gibert points on the cubic K1200 X(42472) Gibert-Moses centroid X(21153)
g-triangles X(41394) Gergonne line extraversion triangle X(10180) Gibert points on the cubic K1204 X(42594) Gibert-Simson transform X(2394)
Gallatly circle X(2007) Gergonne line, points on X(43034) Gibert points on the cubic K1207 X(42725) Gibert-Simson transforms X(15411)
gamma triangle X(15915) Gergonne point X(7) Gibert points on the cubic K1208 X(42773) Giugiuc center of similitude X(7666)
gamma-center of similitude X(15915) Ghoicas-Lozada image X(14815) Gibert points on the cubic K1220 X(43193) golden arbelos points X(2671)
Garcia Capitan circles X(11065) Gibert (i,j,k) points X(42085) Gibert points on the cubic K1224 X(43292) Gosssard perspector X(402)
Garcia inner and outer triangles X(5587) Gibert -Neuberg perspectors X(8172) Gibert points on the cubic K1225 X(43324) greatest area circumscribed equilateral triangle X(9114)
Garcia points X(5550) Gibert circumtangential conjugates X(8616) Gibert points on the cubic K1226 X(43364) Grebe circle X(33703)
Garcia reflection triangle X(15995) Gibert point X(1141) Gibert points on the cubic K1228 X(43397) Grebe point X(6)
Garcia-Feuerbach points X(5550) Gibert points X(42562) Gibert points on the cubic K1229 X(43416) Greenhill circle X(11041)
Gemini triangle 111, associated points X(40896) Gibert points associated with the KHO hyperbola {{X(2),X(4),X(15),X(16),X(316)}} X(43457) Gibert points on the cubic K1232 X(43769) Greenhill point X(1159)
Gemini triangles 001-040 X(24537) Gibert points on cubics K1194-K1201 X(42488) Gibert points on the cubic K1234 X(43869) Griffiths points X(1373)
Gemini triangles 041-060 X(26153) Gibert points on cubics K1206a and K1206b X(42682) Gibert points on the KHO cubics K1215-K1217 X(42940) Grigoriev conics X(5430)
Gemini triangles 061-100 X(27378) Gibert points on the Brocard-Kiepert quartic, Q073 X(42537) Gibert points on the KHO quartic Q168 X(42557) Grinberg homothetic centers X(1383)
Gemini triangles 101-111 X(30738) Gibert points on the cubic K1191 X(42625) Gibert quadratic transformations and inverses X(41231) Grinberg point, 1st X(1122)
Gemini triangles, associated perspectors X(36849) Gibert points on the cubic K1196 X(42429) Gibert-Burek-Moses concurrent circles images X(5524) Grozdev-Dekov circles X(11615)


H-transform X(10025) Hatzipolakis-Lozada images X(6583) Hatzipolakis-Van Tienhoven triangles X(6120) Hung-Lozada-Euler point X(10210)
h-triangles X(41394) Hatzipolakis-Lozada midpoint X(10095) Hex2T circles X(10137) Hung-Montesdeoca perspector X(10207)
h-triangles X(41431) Hatzipolakis-Lozada nine-point image X(6583) Hiriart-Urruty minimizer X(5544) Hung-Montesdeoca radical center X(10206)
Haedus transform X(35182) Hatzipolakis-Lozada point X(10216) hodpieces X(40139) Hung-Montesdeoca-Moses point X(10208)
half-circumcevian triangle X(11615) Hatzipolakis-Lozada quintic X(10095) Hofstadter inellipse X(42074) Hung-Soddy touchpoints X(6135)
half-diamonds triangles X(33338) Hatzipolakis-Lozada triangle X(6344) Hoftstadter one point X(359) Hutson centroidal ellipse X(5943)
half-diamonds-central triangles X(33338) Hatzipolakis-Lozada-Euler reflection point X(6343) Hoftstadter zero point X(360) Hutson ellipse X(5483)
half-squares triangles X(33338) Hatzipolakis-Lozada-Fermat points X(10217) homo-perspeconic X(17410) Hutson inner triangle X(363)
harmonic center X(8072) Hatzipolakis-Lozada-Kosnita point X(6584) homologous images X(6724) Hutson outer triangle X(363)
harmonic of one point X(566) Hatzipolakis-Moses circumcenter X(6637) homothetors involving the Ehrmann mid-triangle X(36718) Hutson right hyperbolas, stationary points X(38001)
harmonic traces X(8072) Hatzipolakis-Moses images X(7680) homothetors involving the Euler triangle X(36651) Hutson-extouch triangle X(5731)
Hatzipolakis 3rd triangle X(17817) Hatzipolakis-Moses images X(10263) homothetors involving the infinite altitude triangle X(36697) Hutson-Feuerbach points X(3614)
Hatzipolakis axis X(18039) Hatzipolakis-Moses nine-point image X(12824) Honsberger triangle X(7670) Hutson-intouch triangle X(5731)
Hatzipolakis-Euler-Moses point X(6143) Hatzipolakis-Moses triangle X(6145) HR-ellipse X(34603) Hutson-McCay points X(7611)
Hatzipolakis-Euler-Schiffler point X(5424) Hatzipolakis-Moses-Euler centroids X(7667) Hung circle X(5944) Hutson-Moses hyperbola X(5376)
Hatzipolakis-Lozada circle X(10222) Hatzipolakis-Moses-Euler centroids X(7734) Hung circle, inner X(5955) Hutson-Wolk points X(5597)
Hatzipolakis-Lozada circles X(44916) Hatzipolakis-Suppa circle X(44937) Hung circle, outer X(5956) Hyacinth triangle X(10111)
Hatzipolakis-Lozada homothetic centers X(7603) Hatzipolakis-Suppa ellipse X(46440) Hung-Feuerbach triangle X(5973)
Hatzipolakis-Lozada hyperbola X(14052) Hatzipolakis-Suppa transforms X(44937) Hung-Lozada cyclologic center X(10214)


IE59 X(12835) inner Vecten point X(486) inverse-in-excircles triangle X(8055) isodynamic points X(15)
incenter X(1) intersections of inconics X(24973) inverse-in-incircle triangle X(5571) isodynamic-Dao equilateral triangles X(16802)
incircle transform X(3318) intriangles and extriangles centers X(30514) inverses of points on the Euler line in permutation ellipse X(44575) isodynamic-Dao equilateral triangles, 3rd & 4th X(31683)
incircle-circles triangle X(11034) inverse Gemini triangles X(43260) inverses of triangles Gemini 15 and 16 X(43213) isogonal conjugates and isotomic conjugates X(44159)
inconics, perspectors X(18810) inverse triangles X(42005) inverter of rwo circles X(5577) isogonic points X(13)
infinite difference point X(23870) inverse triangles and anti- triangles X(45345) involution X(14782) isoperimetric point X(175)
infinity-incircle-transform X(47006) inverse-in-Conway circle triangle X(10439) IO line intercepts 37520-37625 X(37520) isoscelicer points X(503)


Jenkins tangential triangle X(37865) Johnson inner/outer triangles X(10522) Johnson-Yff circle X(1478)
Jerabek antipode X(113) Johnson midpoint X(495)


K-transform X(10025) Kenmotu-centers triangles X(44582) Kiepert point, 2nd X(1132) KM and MK special perspectors X(43803)
K1151, points of the cubic X(36926) Kenmotu-Van Lamoen points X(588) Kirikami concurrent circles images X(5503) KM and MK special perspectors X(43816)
K229 Moses images X(23342) KHM cubic X(14459) Kirikami concurrent circles images, 2nd kind X(5508) KM and MK special perspectors X(43845)
K244 Moses images X(23097) KHM(P) X(14459) Kirikami points X(3640) KM triangles X(43584)
K635 Moses images X(23352) Kiepert antipode X(114) Kirikami six circles image X(5509) Kosnita point X(54)
Kenmotu diagonal triangles X(31) Kiepert cevian triangle X(4444) Kirikami-Euler image X(5485) Koutras-Hatzipolakis-Moses points X(14459)
Kenmotu free vertices triangle, 1st X(12375) Kiepert image X(13486) Kirikami-Euler-Lemoine points X(5621) KS(U) X(3647)
Kenmotu free vertices triangle, 2nd X(12376) Kiepert infinity points X(3413) Kirikami-Kosnita-Euler point X(10211)
Kenmotu homothetic centers X(5412) Kiepert parabola, focus X(110) Kirikami-Schiffler points X(3647)
Kenmotu point X(371) Kiepert point, 1st X(1131) Kiss-Moses mapping X(43390)


L(P,U)-harmonic conjugate of X X(14953) Lester circle X(1116) Lozada circles X(9729) Lucas Brocard triangle, X(6421)
largest-circumscribed-equilateral triangle X(36761) Lester-Moses points X(15535) Lozada conics X(9724) Lucas polar perspectors X(5406)
Le Viet An equilateral triangles X(14169) Leversha point X(14070) Lozada perspectors X(6056) Lucas reflection triangle X(6401)
Le Viet An, inner- and outer circles X(43961) line conjugates on the Euler line X(44886) Lozada perspectors, 2nd X(41279) Lucas secondary circles X(6199)
least area circumscribed equilateral triangle X(9114) line-reflected triangles X(30715) Lozada-Euler point X(7580) Lucas triangles, more X(6199)
Lemoine axis, points on X(42658) Lionheart-Moses k-image X(25045) Lozada-Lemoine circles X(44469) Lucas(t) homothetic triangle X(493)
Lemoine homothetic center X(3066) Liu points X(3598) Lozada-McCay points X(7613)
Lemoine point X(6) Longet-Higgins, point X(962) Lucas antipodal tangents triangles X(9723)
Lemoine-Dao triangles X(16940) Loud points X(9118) Lucas antipodal triangle X(6457)


M(U) points X(6129) midpoints of X(2) and other points X(45657) Morley-adjunct-midpoint triangles X(16839) Moses-Kirikami image X(3589)
MacBeath points X(2967) midpoints on the Euler line X(44210) Morley-Gibert perspectors X(3608) Moses-Lemoine conic X(34426)
MacBeath-Simmons circles X(45256) Mimosa transform X(1707) Morley-Gibert points X(1507) Moses-Lucas circles X(6522)
Maia points X(552) Miquel point X(501) Morley-Kirikami points X(5454) Moses-Parry circle X(8428)
Malfatti perspector, inner X(46891) Mittenpunkt X(9) Morley-Taylor-Marr centers, 1st and 2nd X(357) Moses-Soddy triangle X(44311)
Malfatti perspector, outer X(46892) mixtilinear incentral triangle X(7955) Morley-Taylor-Marr centers, 3rd to 6th X(1134) Moses-Steiner ellipse X(6069)
Malfatti-Rabinowitz points X(1142) mixtilinear triangles X(7955) Morley-Van Tienhoven points X(5628) Moses-Steiner image X(6069)
Malfatti-touchpoints triangle X(46876) mixtilinear triangles 8th and 9th X(44840) Moses circle X(1015) Moses-Steiner ortho-image X(6069)
maltitudes X(10276) MJC Moses-Jerabek conic X(34426) Moses code X(17226) Moses-Steiner reflection triangle X(34505)
Mandart-excircles triangles X(10974) MLC Moses-Lemoine conic X(34426) Moses conics X(36949) Moses-Steiner tangential-image X(6069)
Mandart-incircle triangle X(6018) Montesdeoca conic X(5702) Moses hull circle X(6048) Moses-Yff image X(14163)
McCay triangle X(7606) Montesdeoca degenerate conics point X(8183) Moses osculatory triangle X(34505) MR conics X(46681)
mid-arc points X(177) Montesdeoca equilateral triangles X(5618) Moses points on the Euler line t-uplas X(17669) Muscovite points X(41890)
mid-cevian cubics X(36814) Montesdeoca-Euler points X(42789) Moses radical circle X(6111) mutual polar conic X(32559)
mid-cevian cubics X(36871) Montesdeoca-Hung triangle X(6042) Moses-Apollonius ellipse X(34453) mutual-reflections conic X(46681)
mid-trace triangles X(36810) Montesdeoca-Lemoine circles X(8160) Moses-Euler Point X(14030) Myakishev conic X(3588)
mid-triangles X(10290) Morley center X(356) Moses-Hung triangle X(6044)
midcevian triangles X(40674) Morley conic X(16271) Moses-Hung-circle X(6044)
midpoints of X(2) and other points X(45310) Morley midpoint triangles X(3602) Moses-Jerabek conic X(34426)


N-obverse triangles X(24310) Napoleon points X(17) Nguyen-Euler points X(14226) nine-point-circle-inverses of points on the Euler line 37981-37990 X(37981)
Nagel point X(8) Nguyen images X(14206) Nguyen-Moses circle X(14538) NK transform X(2081)
Nagel-Schröeder point X(1339) Nguyen orthoimage X(14538) Nguyen-Moses image X(14483)
Napoleon cevapoint X(1487) Nguyen rectangle X(14206) nine-point circle, points on X(42422)
Napoleon crosssum X(1493) Nguyen X-triangle X(14538) nine-point-center X(5)


obverse triangle of X(69), associated perspectors X(40921) orthic axis, points on X(47122) orthocevian triangles X(8601) orthopolar circle / conic X(31727)
obverse triangle of X(69), perspectors X(39144) ortho-perspective triangles X(45695) orthocorrespondents X(1992) orthosymmedial circle X(5480)
obverse triangles X(24307) orthoanticevian triangles X(8635) orthogonal points X(566) orthosymmedial triangles X(6792)
odd infinity point X(768) orthoarmonic X(566) orthojoins X(1512) osculatory triangle X(34924)
Odehnal tritangent circles X(3822) orthoassociate X(5523) orthologic conic / orthologic tangential-conic X(31353) Osiris points X(40328)
Odenhal points X(3596) orthocenter X(4) orthologic pedal triangles X(41537)
Orion transform X(2055) orthocentric triangle X(5484) orthologic reflection triangles X(41684)
orthic axes triangle X(2501) orthocentroidal triangle X(5476) orthoparallelogic conic X(31353)


Paache-Myakishev ellipse X(5393) paratriangles X(40843) perspectors of inconics X(18810) power curve, complements and anticomplements associated X(40376)
Paache-Myakishev-Moses conic X(5405) paratriangles X(40853) PK transform X(2081) power point, 4th X(560)
Paasche conic X(37861) Parry 2nd and 3rd triangles X(9123) Pohoata point X(3333) power points X(31)
Paasche ellipse, associated points X(37994) Parry circle X(351) Pohoata-Dao-Moses circles X(5607) Prasolov point X(68)
Paasche point X(1123) Parry point X(111) points associated with the cubic pK(X(50),X(1)) X(35197) Privalov conic X(5451)
Paasche triangles, associated points X(39311) Parry reflection point X(399) points of the form tgX or gtX, where X is on the Euler line X(44077) product triangles X(42285)
Paasche-Hutson triangle X(37994) Parry-Pohoata point X(399) points on the circumellipse with center X(9) X(37128) product triangles X(42464)
Pamphilos-Zou triangles X(7594) Parry-Pohoata point X(8157) points on the line X(2)X(37) X(42698) products X(i)*T X(42437)
Panchapakesan circles X(46001) pedal triangle of the centroid X(40670) points with 1st barcentric b^3 +k a b c+c^3 X(25957) Psi-transformed X(14649)
Pappus pivot X(6179) pentagon points X(1139) pointwise barycentric cubes X(23606) PU(160) to PU(175), related centers X(46191)
Pappus points X(3557) permutation ellipse X(35025) polar co-center point X(19901) PU(176) to PU(196), related centers X(46270)
Pappus points X(46894) permutation ellipse E(X(4440)) X(39345) polar co-centric triangles X(19901) PU(197), related centers X(46187)
para-perspective triangles X(45695) permutation ellipse of X(6), points on X(35963) polarologic centers X(42287) Pulcherrima point X(39131)
parallelogic conic / parallelogic tangential-conic X(31353) permutation ellipses of X(1), points on X(36215) polelogic centers X(42287) Pythagorean conic X(43630)
parallels-perspeconic X(42819) permutation ellipses, inverses in X(41133) poles of named lines wrt named circles X(44408)
parallels-tangential-conics X(37869) perspeconics X(15254) power curve X(40297)
parapoint X(40843) perspeconics X(34807) power curve, Ceva conjugates associated X(40359)


quadsquare triangles X(8953)


range in involution X(14782) rectangles 4th vertices X(46980) Rigby points X(1371)
Rasalgheti points X(39229) reflection axis, 3rd X(46116) Rigby-Lalescu orthopole X(1594)
reciprocal polar conic X(34936) remarkable lines, intersection of X(45881) RS points X(2677)


Saragossa points X(1165) self-inverse Gemini triangles X(31644) Soddy-Gorgonne points X(3638) Steiner parabolas X(41301)
Savin triangles X(44301) Shadow point X(1479) special dilation triangle X(40911) Steiner point X(99)
Schiffler circles X(14526) Sharigyn point, 2nd X(291) Spieker center X(10) Steiner-ellipse-inverses of points on the Euler line X(44328)
Schiffler point X(21) Sharygin Olympiads, centers X(41890) square of the circumcircle X(41932) Steiner-ellipse-inverses of points on the line X(1)X(3) X(44350)
Schiffler triangles X(6595) Sharygin points X(1281) square root point X(365) Stevanovic perspectors X(2090)
Schmidt-Lozada cyclologic center X(10215) Sharygin triangles X(8229) SR points X(2677) Stevanovic point, 1st X(1130)
Schoute circle X(12017) Sherman line, points on X(42750) SS X(3221) Stevanovic points X(1488)
Schröeder point X(1155) Shinagawa-Euler points X(47090) Stammler reflection hyperbola X(35537) Stevanovic points X(3021)
Schroeter triangle X(8286) Siberian points X(41890) Steiner curvature centroid X(1115) submedial triangle X(9813)
secondary pre-circumcevian-inversion point X(35000) Simmons inconics, points on X(41993) Steiner ellipses, osculating circles X(39300) Suren-Moses equilateral-triangle circumcevian-inversion points X(36241)
secondary pre-circumcevian-inversion points X(35447) simpedal point / triangle X(14870) Steiner ellipses, real and imaginary foci X(39158) Suren-Shourya major points X(39624)
self-dual permutation ellipse X(39103) Simson lines, intersections on the nine-point circle X(35579) Steiner ellipses, vertices X(39202) symbolic substitution SS X(3221)
self-dual permutation ellipse X(41133) singular foci of cubics X(14649) Steiner equilateral triangles X(6069) symmetric trapezium UOH'U' X(43388)
self-dual permutation ellipse, inverses in X(44649) SM points X(2855) Steiner image X(13610) symmetric triangle X(15912)
self-hologous point X(7693) Soddy inner/outer triangles, 2nd X(31528) Steiner midellipse X(36521)
self-inverse Gemini triangles X(31610) Soddy triangle X(31528) Steiner midway ellipse (SME) X(41133)


T mapping X(3112) TCC perspectors X(1601) Torricelli point X(13) trilinear products of circumcircle-P-antipodes X(36033)
T(k) triangles X(36436) TCCT-images X(15607) tri-equilateral inner/outer circles X(10631) trilinear squares X(23993)
T(k) triangles, symmetric/homogeneous function X(36473) Terquem conjugate X(8043) tri-equilateral inner/outer triangles X(10631) Trinh triangle X(7688)
T(k, n) triangle X(5858) Terzic circle X(41155) tri-squares triangles X(13637) triply bilogic inscribed triangles X(32462)
T-isogonal-axes X(42287) Terzic circle X(41163) tri-squares triangles, 2nd X(13757) tripolar centroids X(1635)
Talitha triangles X(34016) tetrahedral projection X(40236) tri-squares triangles, 3rd & 4th X(13873) tripolar coordinates X(32751)
tangential midarc triangles X(6732) thinlne X(15670) triangulation X(15766) trisected perimeter center, 1st X(369)
tangential midarc triangles X(8075) Thomson-Gibert-Moses hyperbola X(5642) triaxial point X(14272) trisected perimeter center, 2nd X(3232)
tangential perspeconics X(15808) Three Reflections Theorem X(46116) trilinear N-obverse triangles X(24519) trisection ellipse X(36436)
tangential power curve X(40345) Thurnheer point X(46893) trilinear obverse triangles X(24482) trisector ellipse X(41133)
Tarry point X(98) Tixier antipode X(477) trilinear permutation conic X(36256) Tucker (X,p)-circle X(12835)
TC conics X(36404) Tixier point X(476) trilinear permutation conic of X(1054) X(39335) Tucker parameter X(13323)


U(k, n) triangle X(5858) U-Hodpieces X(40212) Ursa minor/major triangles X(17603)
U(P) circles X(6129) U-Van Lamoen circles X(8176)


V(P) circles X(6137) Vijay ellipses X(44733) Vijay-Paasche-Hutson triangles X(38487) Vu orthogonal conics X(40306)
V- transform / V transforms on the circumcircle X(36514) Vijay incentral circles and excentral circles X(44039) Vijay-Paasche-Hutson triangles, associated points X(39607) Vu P-cirumcircle points X(38451)
V-perspeconics X(45188) Vijay orthic medial circles and triangles X(45979) Vu (k)-conics X(38433) Vu parallels conics X(40197)
Van Lamoen circle X(1153) Vijay orthic medial conic X(45979) Vu (P,U)-circles X(38457) Vu PCC perspectors X(38900)
Van Lamoen circumcenters point X(592) Vijay orthic polar triangle of circumcircle X(44192) Vu (P,U)-circles perspectors X(38536) Vu pedal translations X(38005)
Van Lamoen homothetic centers X(493) Vijay parallel transforms X(43970) Vu antipedal translations X(38305) Vu pedal-centroidal circles X(38317)
Van Lamoen perpendicular bisectors point, 1st X(591) Vijay polar medial circles and triangles X(45845) Vu cevian tangential perspectors X(38809) Vu points X(34520)
Vecten point X(485) Vijay reflected squares point X(37838) Vu cevian-circles perspectors and related cyclocevian conjugates X(38825) Vu poles X(37756)
Vecten triangles, 2nd & 3rd X(32488) Vijay transforms, 12th X(45289) Vu circlecevian point X(34892) Vu T-transform X(34914)
Vega transform X(1981) Vijay triangles associated with Vijay ellipses X(44733) Vu circles X(37806) Vu tangential transforms X(38848)
vertex conjugates X(3415) Vijay-Hutson triangles X(44021) Vu circumcevian-orthocenter perspectors X(38331) Vu-Dao-isodynamic equilateral triangles X(5478)
Vietnamese circles X(39210) Vijay-Paasche midpoints perspector X(37881) Vu circumcevian-orthocenter, 2nd perspectors X(38336) Vu-Lozada QA-points X(38247)
Vietnamese lines, trilinear poles of X(39274) Vijay-Paasche tangents perspector X(37884) Vu isodynamicpPerspectors X(39402) Vu-Miquel points X(45238)
Vietnamese points X(39177) Vijay-Paasche-Hutson triangles X(37994) Vu isogonal perspectors X(39453)


Wabash center X(364) Walsmith triangle X(32217) Weill point X(354) Wolk-Feuerbach point X(5532)
Walsmith points X(5000) Walsmith-Moses points X(5002) Wernau points X(1337)
Walsmith rectangular hyperbola X(32110) Wasat triangle X(21616) Wolk perspector X(5506)


X(1)X(5) line intercepts 37691-37740 X(37691) X-parabola X(12064) Xcom(T) X(3663)
X(2)X(6) line intercepts 37636-37690 X(37636) X-parabola-tangential triangle X(12064)


Yff parabolic point X(190) Yiu angle point X(848) Yiu reflection point X(5627) Yiu-Hutson conic X(14379)
Yff tangents inner/outer triangles X(10527) Yiu conic X(478) Yiu tangents triangle X(7495)
Yff-Malfatti point X(400) Yiu infinity points X(39469) Yiu-Hatzipolakis point X(1148)


Zana point X(40140) Zaniah triangles X(18214) Zeeman-Gossard perspector X(402) Zosma transform X(1824)