Subversion Repositories wimsdev

!if $wims_read_parm!=slib_header
  !goto proc
!endif
slib_author=Gang, XIAO

slib_example= 3,6
slib_require=pari
!exit

:proc
!distribute items $wims_read_parm into slib_size,slib_range,slib_ring
!default slib_ring=Z
!bound slib_size between integer 2 and 20 default 2
!bound slib_range between integer 1 and 1000000 default 2

!if $slib_ring=Z
  slib_sh1=!shuffle $slib_size
  slib_sh2=!shuffle $slib_size
  slib_ran1=(random(2*$slib_range)*(2*random(2)-1))
  slib_ran2=(random($slib_range)*(4*random(2)-2))
  slib_ran3=(random($slib_range)*(4*random(2)-2)+2*random(2)-1)
  slib_coef=if(x==y,$slib_ran3,if(x>y,$slib_ran2,$slib_ran1))
  slib_M1=vecextract(matrix($slib_size,$slib_size,x,y,$slib_coef),[$slib_sh1],[$slib_sh2])
  slib_M2=matrix($slib_size,$slib_size,x,y,$slib_ran1)
  slib_out=!exec pari M2=$slib_M2;if(matdet(M2)<>0,print(M2),print($slib_M1))
  !exit
!endif