Subversion Repositories wimsdev

!if $wims_read_parm!=slib_header
 !goto proc
!endif
slib_title=Generates a random triangular matrix
slib_parms=5\
2,number of rows\
2,number of columns\
2,coefficient range\
random,u (upper) or d (down)\
Z,coefficient ring: Z for the time being,Q,R,C,G (Gauss ring), n (n is an integer for Z/nZ)
slib_author=Gang Xiao
slib_out=the generated matrix
slib_example=4,2,5,random\
4,2,5,u\
4,2,5,d
slib_require=pari
!exit

:proc
!distribute items $wims_read_parm into slib_rows,slib_cols,slib_range,slib_o,slib_ring
slib_o=!lower $slib_o
slib_o=!nospace $slib_o
slib_o=!char 1 of $slib_o
slib_r=!randitem u,d
!bound slib_o within d,u default $slib_r
!default slib_ring=Z
!bound slib_rows between integer 1 and 30 default 2
!bound slib_cols between integer 1 and 30 default 2
!bound slib_range between integer 1 and 1000000 default 2

!if $slib_ring=Z
 slib_ran1=(random(2*$slib_range+1)-$slib_range)
!endif

!if $slib_o=u
 slib_comp=x>y
!else
 slib_comp=x<y
!endif

slib_coef=if($slib_comp,0,$slib_ran1)
slib_out=!exec pari print(matrix($slib_rows,$slib_cols,x,y,$slib_coef))