- hyperbola collapses
- гипербола вырождается
Англо-русский технический словарь.
Англо-русский технический словарь.
Nine-point circle — The nine points In geometry, the nine point circle is a circle that can be constructed for any given triangle. It is so named because it passes through nine significant points defined from the triangle. These nine points are: The midpoint of each … Wikipedia