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D.2.3.1 A_Z

Procedure from library general.lib (see general_lib).

Usage:
A_Z("a",n); a any letter, n integer (-26<= n <=26, !=0)

Return:
string of n small (if a is small) or capital (if a is capital) letters, comma separated, beginning with a, in alphabetical order (or reverse alphabetical order if n<0)

Example:
 
LIB "general.lib";
A_Z("c",5);
==> c,d,e,f,g
A_Z("Z",-5);
==> Z,Y,X,W,V
string sR = "ring R = (0,"+A_Z("A",6)+"),("+A_Z("a",10)+"),dp;";
sR;
==> ring R = (0,A,B,C,D,E,F),(a,b,c,d,e,f,g,h,i,j),dp;
execute(sR);
R;
==> // coefficients: QQ(A, B, C, D, E, F)
==> // number of vars : 10
==> //        block   1 : ordering dp
==> //                  : names    a b c d e f g h i j
==> //        block   2 : ordering C