## What does "X += nb; Y+= nb;" mean if X and Y are two vectors and nb is an integer?

at page 8 of the paper :
[Reducing floating point error in dot product using the superblock family of algorithms- Anthony M. Castaldo , R.Clint Whaley, and Anthony T. Chronopouos][1]
there is the following code:
typedef double scalar;
typedef sca...

more
»