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BASIC Source File  |  1993-01-29  |  982 b   |  32 lines
  1. '   +----------------------------------------------------------------------+
  2. '   |                                                                      |
  3. '   |        BASWIZ  Copyright (c) 1990-1993  Thomas G. Hanlin III         |
  4. '   |                                                                      |
  5. '   |                      The BASIC Wizard's Library                      |
  6. '   |                                                                      |
  7. '   +----------------------------------------------------------------------+
  8.  
  9.    DECLARE FUNCTION CosHS! (Nr AS SINGLE)
  10.    DECLARE FUNCTION SinHS! (Nr AS SINGLE)
  11.  
  12.    DEFSNG A-Z
  13.  
  14. FUNCTION TanHS! (Nr AS SINGLE)
  15.    IF Nr < 0! THEN
  16.       N = -Nr
  17.       Negate% = -1
  18.    ELSE
  19.       N = Nr
  20.    END IF
  21.    IF N > 21! THEN
  22.       TanHS! = 99999!
  23.    ELSE
  24.       tmp = SinHS!(N) / CosHS!(N)
  25.       IF Negate% THEN
  26.          TanHS! = -tmp
  27.       ELSE
  28.          TanHS! = tmp
  29.       END IF
  30.    END IF
  31. END FUNCTION
  32.