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D.2.3.2 A_Z_L
Procedure from library general.lib (see general_lib).
- Usage:
- A_Z_L("a",n); a any letter, n integer (-26<= n <=26, !=0)
- Return:
- list of n small (if a is small) or capital (if a is capital)
letters, beginning with a, in alphabetical
order (or reverse alphabetical order if n<0)
Example:
| | LIB "general.lib";
A_Z_L("c",5);
==> [1]:
==> c
==> [2]:
==> d
==> [3]:
==> e
==> [4]:
==> f
==> [5]:
==> g
A_Z_L("Z",-5);
==> [1]:
==> Z
==> [2]:
==> Y
==> [3]:
==> X
==> [4]:
==> W
==> [5]:
==> V
ring r;
list L=list(0,A_Z_L("A",6),list(list("dp",1:6),list("C",0)),ideal(0));
ring R=ring(L);
R;
==> // coefficients: QQ
==> // number of vars : 6
==> // block 1 : ordering dp
==> // : names A B C D E F
==> // block 2 : ordering C
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