Mantid

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Namespaces  
namespace  Mantid 
Helper class which provides the Collimation Length for SANS instruments.  
namespace  Mantid::Kernel 
Macros  
#define  EXP_A (1048576 / M_LN2) 
Based on the article: A Fast, Compact Approximation of the Exponential Function by Nicol N. More...  
#define  EXP_C 60801 
Functions  
double  Mantid::Kernel::fast_exp (double y) 
#define EXP_A (1048576 / M_LN2) 
Based on the article: A Fast, Compact Approximation of the Exponential Function by Nicol N.
Schraudolph and on the slighly modified version: On a Fast, Compact Approximation of the Exponential Function Neural Computation archive Volume 12 , Issue 9 (September 2000) Pages 20092012 Author: Gavin C. Cawley University of East Anglia, Norwich, Norfolk NR4 7TJ, England This is actually a bit faster than a LookupTable with linear interpolation, however it seems less accurate with error as big as a few % for some values of y.
Definition at line 26 of file Fast_Exponential.h.
#define EXP_C 60801 
Definition at line 27 of file Fast_Exponential.h.