|
|
D.15.1.26 arrRandom
Procedure from library arr.lib (see arr_lib).
- Usage:
- arrRandom(n,v,N); int n,v,N
- Return:
- Random arrangement, where m is the number of hyperplanes, n the
dimension, d the upper bound for absolute value of coefficients.
- Note:
- You can also write arr = random(d,m,n) to create random arrangements
Example:
| | LIB "arr.lib";
ring R = 0,x(1..20),dp;
arrRandom(7,3,15);
==> _[1]=2*x(1)-6*x(2)-3*x(3)+4*x(5)+x(6)-4*x(7)-3*x(8)-x(9)+x(10)-3*x(11)-6*\
x(12)-x(13)+2*x(14)-6*x(15)-4
==> _[2]=x(1)-3*x(2)-4*x(3)-7*x(5)-3*x(6)+x(8)-3*x(9)-4*x(10)-x(11)-7*x(12)-2\
*x(13)-3*x(14)-1
==> _[3]=4*x(1)+2*x(2)+5*x(3)-x(4)+6*x(5)+5*x(6)-6*x(7)+5*x(8)+x(10)+3*x(11)-\
5*x(12)+2*x(13)+6*x(14)+x(15)+3
==>
|
See also:
arrBoolean;
arrBraid;
arrEdelmanReiner;
arrRandom;
arrTypeB;
arrTypeD.
|
