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BASIC Source File  |  1993-01-29  |  645 b   |  12 lines
  1. '   +----------------------------------------------------------------------+
  2. '   |                                                                      |
  3. '   |        BASWIZ  Copyright (c) 1990-1993  Thomas G. Hanlin III         |
  4. '   |                                                                      |
  5. '   |                      The BASIC Wizard's Library                      |
  6. '   |                                                                      |
  7. '   +----------------------------------------------------------------------+
  8.  
  9. FUNCTION ArcTanHD# (Nr AS DOUBLE)
  10.    ArcTanHD# = LOG((1# + Nr) / (1# - Nr)) / 2#
  11. END FUNCTION
  12.