Conic Sections
(see also Conic Sections) |
Point
x^2 + y^2 = 0 |
Circle
x^2 + y^2 = r^2 |
Ellipse
x^2 / a^2 + y^2 / b^2
= 1 |
Ellipse
x^2 / b^2 + y^2 / a^2
= 1 |
Hyperbola
x^2 / a^2 - y^2 / b^2
= 1 |
Parabola
4px = y^2 |
Parabola
4py = x^2 |
Hyperbola
y^2 / a^2 - x^2 / b^2
= 1 |
For any of the above with a center at (j, k) instead of
(0,0), replace each x term with (x-j) and each y term
with (y-k) to get the desired equation. |