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C/C++ Source or Header  |  1992-11-19  |  320 b   |  12 lines
  1. /*
  2. *-----------------------------------------------------------------------------
  3. *    file:        nnmath.h
  4. *    desc:        nnmath.c header
  5. *    by:            patrick ko
  6. *    date:        2 aug 1991
  7. *-----------------------------------------------------------------------------
  8. */
  9.  
  10. #define    sigmoid( netpj )    (1.0 / (1.0 + exp(-1.0 * (netpj))))
  11.  
  12.