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Topic: Parabola
Message: Posted by: blazes816 (May 25, 2005 05:29PM)
Rough spelling I hope ya'll get the gist.
what is the exact equation for a parrabala?
Message: Posted by: landmark (May 25, 2005 06:39PM)
It's in your algebra textbook, kiddo!

Jack Shalom
Message: Posted by: blazes816 (May 25, 2005 09:56PM)
I don't have one but o well
Message: Posted by: Magicsquared (May 25, 2005 11:27PM)

there are others but that's the standard equation.

And it's spelled parabola.
Message: Posted by: blazes816 (May 26, 2005 10:15AM)
Ok thank you
Message: Posted by: therntier (Jun 14, 2005 08:48AM)
The x and y variables are, of course, interchangeable. There is no need, in the definition of a parabola, that it be a function.
Message: Posted by: stanalger (Jun 14, 2005 09:59AM)
In fact, the axis of symmetry for a parabola need not be vertical
or horizontal.

So the GENERAL equation for a parabola is
Ax^2 + Bxy + Cy^2 + Dx + Ey = F
Where A, B, C, D, E and F are constants and B^2 = 4AC.
Message: Posted by: stanalger (Jun 14, 2005 10:41AM)
...and (A^2 + B^2 + C^2) is not equal to zero.
Message: Posted by: blazes816 (Jun 14, 2005 12:03PM)
Okay, thank you. In case any of you are wondering why I asked it's because I found a way to transmit power from outlets in a house, through the air; so all electronics can be wireless. The receiver mechanizm use a parabola. So I was just wondering about the formula.
Message: Posted by: Jonathan Townsend (Jun 18, 2005 03:58PM)
Let us know how your project goes.
Message: Posted by: blazes816 (Jun 20, 2005 12:38AM)
Okay I will