Author: Charles Karney

  • On auxiliary latitudes

    This paper summarizes methods for converting between them with an emphasis on providing full double-precision accuracy.

  • Sensor Trajectory Estimation by Triangulating Lidar Returns

    The paper describes how to recover the sensor trajectory for an aerial lidar collect using the data for multiple-return lidar pulses.

  • Geodesics on an Arbitrary Ellipsoid of Revolution

    The present paper seeks to extend the treatment to arbitrary ellipsoid (in this paper, the term “ellipsoid” should be understood to mean “ellipsoid of revolution”).

  • Sampling Exactly from the Normal Distribution

    An algorithm for sampling exactly from the normal distribution is given. The algorithm reads some number of uniformly distributed random digits in a given base and generates an initial portion of the representation of a normal deviate in the same base.