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Sunday, December 06, 2009 – Permalink – Curvesand MoreFamous curves from Cal State at LA. All your favorites from Astroid to Witch of Agnesi. Here is a collection of Functions relating to astronomy from Stargazing.net. Can't tell who might be interested in the obliquity of the equator given date in days after J2000.0. See: Astro VBA Other Curve stuff: DelphiForFun.org: converting polar coordinates to Cartesian coordinates. "Students of analytic geometry, (the kind that combines algebra and geometry), often work in one of two coordinate systems: Cartesian or Polar - and frequently must convert from one to the other. [Edited entry from 12/2/2006] See all Topics Labels: Excel <Doug Klippert@ 3:00 AM |