Examples of the SIGMA processor (2)

Examples of the SIGMA processor (2)
      zone 2 2
1 3   SIGMA X=ARRAY(200,0#5)                                                                 
2     SIGMA A=8                                                                                
      sigma b=.01
3     SIGMA Y=EXP(-X)*SIN(A*X)+B*X*X                                                           
      gra 200 x y
      sigma x=array(200,0#2*pi)
      sigma s=sin(x)
      sigma s2=s/2
      sigma c=cos(x)
      sigma c2=c/2
      sigma s4=s/4
      sigma c4=c/4
      gra 200 s c
      gra 200 s2 c l
      gra 200 s4 c l
      gra 200 s c2 l
      gra 200 s2 c2 l
      gra 200 s4 c2 l
      gra 200 s c4 l
      gra 200 s2 c4 l
      gra 200 s4 c4 l
      sigma a=array(100,0#59.77)
      sigma nc=nco(a)
      sigma y=cos(a)*a
      sigma x=sin(a)*a
      gra nc x y
      sigma a=a*2.55555
      sigma y=cos(a)*a
      sigma x=sin(a)*a
      gra nc x y

The command V=ARRAY(L,x1#x2) allows to create a vector V with the length L and initialize it in the range x1,x2 .
All the objects managed by SIGMA are vectors . In this example A is vector of length 1.
The resulting vectors (if they don't exist) are created automatically by SIGMA (here Y ).

			PAW Tutorial	Last update: 1999/04/01 14.59	Olivier.Couet@Cern.Ch