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BASIC Source File  |  1993-01-29  |  788b  |  23 lines
  1. '   +----------------------------------------------------------------------+
  2. '   |                                                                      |
  3. '   |        BASWIZ  Copyright (c) 1990-1993  Thomas G. Hanlin III         |
  4. '   |                                                                      |
  5. '   |                      The BASIC Wizard's Library                      |
  6. '   |                                                                      |
  7. '   +----------------------------------------------------------------------+
  8.  
  9.    DEFSNG A-Z
  10.  
  11. FUNCTION CosHS! (Nr AS SINGLE)
  12.    IF Nr < 0! THEN
  13.       N = -Nr
  14.    ELSE
  15.       N = Nr
  16.    END IF
  17.    IF N > 21! THEN
  18.       CosHS! = EXP(N) / 2!
  19.    ELSE
  20.       CosHS! = (EXP(N) + EXP(-N)) / 2!
  21.    END IF
  22. END FUNCTION
  23.