window_mode(0 | 1 | 2)

• window_mode( 0) : do not use
  
• window_mode( 1) : use it, in 2D as a separable matrix F1(i)F2(j)
  
• window_mode( 2) : use it in 2D as a 2D matrix
  

NPK Documentation, version 0.995 - 2009-10-14