fann_get_quickprop_decay
  Returns the decay which is a factor that weights should decrease in each iteration during quickprop training
  
 
  Description
  
   float fann_get_quickprop_decay
    ( resource $ann
   )
  
  
   The default decay is -0.0001.
  
  
 
  Parameters
  
   
    - 
ann
- 
     Neural network resource. 
 
 
  Return Values
  
   The decay, or FALSE on error.