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bergen ellipses
Stack #13963
Question | Answer |
---|---|
eq. of ellipse [^v] | (x-h)^2/a^2 + (y-k)^2/b^2 = 1 |
eq.[<>] | (x-h)^2/b^2 + (y-k)^2/a^2 = 1 |
center[^v] | (h,k) |
center[<>] | (h,k) |
Major axis endpts[^v] | (h+a,k) & (h-a,k) |
Major axis endpts[<>] | (h,k+a) & (h,k-a) |
Minor axis endpts[^v] | (h,k+b) & (h,k-b) |
Minor axis endpts[<>] | (h+b,k) & (h-b,k) |
a, b &c[^v] | a^2 - b^2=c^2 |
a, b &c[<>] | a^2 - b^2=c^2 |
coordinates of foci [^v] | (h+c,k) & (h-c,k) |
coordinates of foci [<>] | (h,k+c) & (h,k-c) |