Journal of Computer-Generated Euclidean Geometry



Contents



Volume 1 (2006)

Deko Dekov, Apollonius Circle,   PDF format, 134 KB.
Deko Dekov, Apollonius Problem,   PDF format, 139 KB.
Deko Dekov, Compositions of Transformations in Triangle Geometry,   PDF format, 36 KB.
Volume 1 (2006) All Articles, PDF format, 240 KB.

Volume 2 (2007)

Deko Dekov, The Ambiguities of the Natural Language,   PDF format, 46 KB.
Deko Dekov, Triangulation Triangles,   PDF format, 175 KB.
Deko Dekov, Stevanovic Triangles,   PDF format, 125 KB.
Deko Dekov, Corner Triangles,   PDF format, 91 KB.
Deko Dekov, Anticevian Corner Triangles,   PDF format, 101 KB.
Deko Dekov, Incenter,   PDF format, 68 KB.
Deko Dekov, Grinberg Triangles,   PDF format, 102 KB.
Deko Dekov, Hatzipolakis Triangles,   PDF format, 46 KB.
Deko Dekov, Malfatti Squares Triangle,   PDF format, 57 KB.
Deko Dekov, Construction of the Malfatti Squares Triangle,   PDF format, 143 KB.
Deko Dekov, Symmedian Point,   PDF format, 70 KB.
Deko Dekov, Triangles of Reflections. Part 1,   PDF format, 74 KB.
Deko Dekov, Triangles of Reflections. Part 2,   PDF format, 102 KB.
Deko Dekov, Triangles of Reflections. Part 3,   PDF format, 146 KB.
Deko Dekov, Euler Triangles,   PDF format, 139 KB.
Deko Dekov, Orthocenter,   PDF format, 69 KB.
Deko Dekov, Half-Cevian Triangles,   PDF format, 105 KB.
Deko Dekov, Half-Anticevian Triangles,   PDF format, 63 KB.
Deko Dekov, Centroid,   PDF format, 105 KB.
Deko Dekov, Circumcenter,   PDF format, 129 KB.
Deko Dekov, Nine-Point Center,   PDF format, 63 KB.
Deko Dekov, Gergonne Point,   PDF format, 44 KB.
Deko Dekov, Nagel Point,   PDF format, 46 KB.
Deko Dekov, Mittenpunkt,   PDF format, 38 KB.
Deko Dekov, Spieker Center,   PDF format, 46 KB.
Deko Dekov, Grinberg Point,   PDF format, 85 KB.
Deko Dekov, Gibert Point,   PDF format, 97 KB.
Deko Dekov, Side Triangles,   PDF format, 81 KB.
Deko Dekov, Moses Point,   PDF format, 77 KB.
Deko Dekov, Skordev Point,   PDF format, 94 KB.
Deko Dekov, Inner Johnson Triangles,   PDF format, 133 KB.
Deko Dekov, Apollonius Triangles,   PDF format, 166 KB.
Deko Dekov, Moses Triangles,   PDF format, 220 KB.
Deko Dekov, de Longchamps Point,   PDF format, 96 KB.
Deko Dekov, Weill Point,   PDF format, 61 KB.
Deko Dekov, Congruent Isoscelizers Point,   PDF format, 38 KB.
Deko Dekov, Yff Center of Conguence,   PDF format, 51 KB.
Deko Dekov, Equal Parallelians Point,   PDF format, 47 KB.
Deko Dekov, Fuhrmann Center,   PDF format, 64 KB.
Deko Dekov, Grebe Triangles,   PDF format, 225 KB.
Deko Dekov, Equilateral Triangles,   PDF format, 90 KB.
Deko Dekov, Outer Fermat Point,   PDF format, 62 KB.
Deko Dekov, Inner Fermat Point,   PDF format, 38 KB.
Deko Dekov, Outer Vecten Point,   PDF format, 66 KB.
Deko Dekov, Inner Vecten Point,   PDF format, 41 KB.
Volume 2 (2007) All Articles, PDF format, 2.61 MB.

Volume 3 (2008)

Deko Dekov, First Isodynamic Point,   PDF format, 103 KB.
Deko Dekov, Second Isodynamic Point,   PDF format, 67 KB.
Deko Dekov, Kenmotu Points,   PDF format, 136 KB.
Deko Dekov, Napoleon Points,   PDF format, 57 KB.
Deko Dekov, Gallatly-Kiepert Triangles,   PDF format, 127 KB.
Deko Dekov, Construction of the Outer Gallatly-Kiepert Triangle,   PDF format, 132 KB.
Deko Dekov, Gallatly-Kiepert Points,   PDF format, 111 KB.
Deko Dekov, Lemoine-Kiepert Triangles,   PDF format, 162 KB.
Deko Dekov, Lemoine-Kiepert Points,   PDF format, 84 KB.
Hristo Milev, New Constructions of the Outer Gallatly-Kiepert Triangle,   PDF format, 55 KB.
Deko Dekov, Fermat Triangles,   PDF format, 89 KB.
Deko Dekov, Intangents Triangle,   PDF format, 99 KB.

Problems for school students and teachers
About the problems

Feuerbach Point
  1. The Feuerbach Point lies on the Circle through the Symmedian Point, the Internal Center of Similitude of the Incircle and the Circumcircle and the Grinberg Point,   PDF format, 27 KB.
  2. The Feuerbach Point is the Centroid of the Hatzipolakis Triangle of the Feuerbach Point,   PDF format, 27 KB.
  3. The Feuerbach Point is the Circumcenter of the Desmic Mate the Outer Yff Triangle,   PDF format, 30 KB.
  4. The Feuerbach Point is the Perspector of the Euler Triangle and the Triangle of the Incenters of the Corner Triangles of the Orthocenter,   PDF format, 31 KB.
  5. The Feuerbach Point lies on the Parry Circle of the Intouch Triangle,   PDF format, 27 KB.
  6. The Feuerbach Point lies on the Nine-Point Circle of the Outer Yff Triangle,   PDF format, 30 KB.
  7. The Feuerbach Point lies on the Cevian Circle of the Mittenpunkt,   PDF format, 28 KB.
  8. The Feuerbach Point lies on the Pedal Circle of the Mittenpunkt,   PDF format, 27 KB.
  9. The Feuerbach Point is the External Center of Similitude of the Circumcircle and the Outer Johnson-Yff Circle,   PDF format, 27 KB.
  10. The Feuerbach Point lies on the Cevian Circle of the Schiffler Point,   PDF format, 33 KB.
  11. The Feuerbach Point lies on the Pedal Circle of the Schiffler Point,   PDF format, 34 KB.
  12. The Feuerbach Point lies on the Cevian Circle of the Yff Center of Conguence,   PDF format, 27 KB.
  13. The Feuerbach Point lies on the Pedal Circle of the Gergonne Point,   PDF format, 26 KB.
  14. The Feuerbach Point lies on the Pedal Circle of the Nagel Point,   PDF format, 26 KB.
  15. The Feuerbach Point lies on the Pedal Circle of the Moses Point,   PDF format, 26 KB.
  16. The Feuerbach Point lies on the Pedal Circle of the Weill Point,   PDF format, 29 KB.
  17. The Feuerbach Point lies on the Pedal Circle of the Evans Perspector,   PDF format, 30 KB.
  18. The Feuerbach Point is the Inverse of the Incenter in the Nine-Point Circle of the Fuhrmann Triangle,   PDF format, 27 KB.
  19. The Feuerbach Point is the Perspector of the Incentral Triangle and the Feuerbach Triangle,   PDF format, 27 KB.
  20. The Feuerbach Point is the Homothetic Center of the Johnson Triangle and the Outer Yff Triangle,   PDF format, 28 KB.
  21. The Feuerbach Point is the Perspector of the Euler Triangle and the Triangle of the Moses Points of the Corner Triangles of the Orthocenter,   PDF format, 29 KB.
  22. The Feuerbach Point is the Perspector of the Euler Triangle and the Triangle of the Bevan Points of the Corner Triangles of the Orthocenter,   PDF format, 29 KB.
  23. The Feuerbach Point is the Perspector of the Euler Triangle and the Triangle of the Internal Centers of Similitude of the Incircles and the Circumcircles of the Corner Triangles of the Orthocenter,   PDF format, 30 KB.
  24. The Feuerbach Point is the Perspector of the Euler Triangle and the Triangle of the External Centers of Similitude of the Incircles and the Circumcircles of the Corner Triangles of the Orthocenter,   PDF format, 30 KB.
  25. The Feuerbach Point is the Perspector of the Euler Triangle and the Triangle of the Weill Points of the Corner Triangles of the Orthocenter,   PDF format, 29 KB.
  26. The Feuerbach Point is the Perspector of the Euler Triangle and the Triangle of the Evans Perspectors of the Corner Triangles of the Orthocenter,   PDF format, 29 KB.
  27. The Feuerbach Point is the Perspector of the Euler Triangle and the Triangle of the Orthocenters of the Corner Triangles of the Gergonne Point,   PDF format, 29 KB.
  28. The Feuerbach Point is the Perspector of the Euler Triangle and the Triangle of the Orthocenters of the Corner Triangles of the Nagel Point,   PDF format, 29 KB.
  29. The Feuerbach Point is the Homothetic Center of the Inner Yff Triangle and the Triangle of the Centers of the Orthocentroidal Circles of the Triangulation Triangles of the Orthocenter,   PDF format, 31 KB.
  30. The Feuerbach Point is the Homothetic Center of the Outer Yff Triangle and the Triangle of the Circumcenters of the Triangulation Triangles of the Orthocenter,   PDF format, 30 KB.
  31. The Feuerbach Point is the Homothetic Center of the Outer Yff Triangle and the Triangle of the Circumcenters of the Anticevian Corner Triangles of the Centroid,   PDF format, 32 KB.
  32. The Feuerbach Point is the Homothetic Center of the Outer Yff Triangle and the Triangle of the Orthocenters of the Anticevian Corner Triangles of the Symmedian Point,   PDF format, 28 KB.
  33. The Feuerbach Point is the Homothetic Center of the Outer Yff Triangle and the Triangle of reflections of the Circumcenter in the vertices of the Medial Triangle,   PDF format, 29 KB.
  34. The Feuerbach Point is the Inverse of the Incenter in the Second Droz-Farny Circle of the Fuhrmann Triangle,   PDF format, 27 KB.
  35. The Feuerbach Point is the External Center of Similitude of the Circumcircle of the Johnson Triangle and the Circumcircle of the Outer Yff Triangle,   PDF format, 29 KB.

Letters to the Editor

Dimiter Skordev, Letter to the Editor,   PDF format, 20 KB.