| 41. | This proof proves the theorem for circle and then generalizes it to conics.
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| 42. | The value of e controls what kind of conic section the orbit is.
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| 43. | In fact each such quadric contains the Veronese surface, which parametrizes the conics
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| 44. | However, any two conic sections are projectively equivalent.
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| 45. | The Albers equal-area conic projection features no distortion along standard parallels.
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| 46. | The deep dark brown cones are pendulous and ovoid-conic in shape.
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| 47. | The spire short, conic, very small compared with the body whorl.
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| 48. | Surprising that neither parabola nor conic section gives this.
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| 49. | Represents a conic in the pencil determined by and.
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| 50. | This technique also uses a hand sensor to adjust the conic pointer size.
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