Saytan: The Sayre-Equation Tangent Formula

  • Cecil Tate
Part of the NATO ASI Series book series (NSSB, volume 274)


SAYTAN is a computer-programmed tangent formula for phase determination, employed in a multi-trial approach in the MULTAN tradition. It has been described in two publications by Debaerdemaeker, Tate & Woolfson (1985, 1988). In the first of these papers it was called the “Sayre Tangent Formula”, but a referee for the second paper pointed out that Sayre did not have a tangent formula and so, since then, we use the more appropriate description “Sayre-equation Tangent Formula”.


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Copyright information

© Springer Science+Business Media New York 1991

Authors and Affiliations

  • Cecil Tate
    • 1
  1. 1.Department of PhysicsUniversity of YorkYorkUK

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