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24 lines
763 B
24 lines
763 B
2 years ago
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C Copyright(C) 1999-2020 National Technology & Engineering Solutions
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C of Sandia, LLC (NTESS). Under the terms of Contract DE-NA0003525 with
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C NTESS, the U.S. Government retains certain rights in this software.
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C
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C See packages/seacas/LICENSE for details
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REAL FUNCTION ELIPSE (A7, A8, A2, ANG)
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C***********************************************************************
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C FUNCTION ELIPSE = CALCULATES THE ANGULAR EQUATION ERROR WHEN FINDING
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C AN ELIPSE PATTERN
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C***********************************************************************
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PI = ATAN2(0.0, -1.0)
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A4 = A8 - ANG
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A5 = A7 - ANG
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A3 = A2 - A4
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A6 = PI - A5 - A2
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ELIPSE = SIN(A4) * SIN(A6) - SIN(A5) * SIN (A3)
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RETURN
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END
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