TY - JOUR
T1 - A Unified General Theory of Conic Sections via the Conic Radical
AU - Chávez-Pichardo, Mauricio
AU - López-Barrientos, José Daniel
AU - Perea-Flores, Saúl
N1 - Publisher Copyright:
© 2025 by the authors.
PY - 2026/1/1
Y1 - 2026/1/1
N2 - In this paper, we bring forth several new general formulae in the classic study of conics in the Analytic Geometry: the coordinates of all vertices and focal points of arbitrary parabolas, ellipses, and hyperbolas; lengths for all latera recta from any non-degenerate conic section; equations describing straight lines whose limited-slope contents stand on exactly equal footing as focal axes, latera recta, and directrices from every non-degenerate conic section; and, respectively, these ones characterizing asymptotes for each non-degenerate hyperbola. All these general results work regardless of whether the conics in question are rotated or not on the Cartesian plane, because all of them depend only on the coefficients of the general conic equation, making the rotation angle irrelevant for the analysis of conic sections.
AB - In this paper, we bring forth several new general formulae in the classic study of conics in the Analytic Geometry: the coordinates of all vertices and focal points of arbitrary parabolas, ellipses, and hyperbolas; lengths for all latera recta from any non-degenerate conic section; equations describing straight lines whose limited-slope contents stand on exactly equal footing as focal axes, latera recta, and directrices from every non-degenerate conic section; and, respectively, these ones characterizing asymptotes for each non-degenerate hyperbola. All these general results work regardless of whether the conics in question are rotated or not on the Cartesian plane, because all of them depend only on the coefficients of the general conic equation, making the rotation angle irrelevant for the analysis of conic sections.
KW - analytic geometry
KW - conic sections
KW - general conic equation
KW - general second-degree equation
KW - general theorem of conic sections
KW - rotated conic sections
KW - translation and rotation of the Cartesian axes
UR - https://www.scopus.com/pages/publications/105027968306
U2 - 10.3390/math14010138
DO - 10.3390/math14010138
M3 - Artículo
AN - SCOPUS:105027968306
SN - 2227-7390
VL - 14
JO - Mathematics
JF - Mathematics
IS - 1
M1 - 138
ER -