|  |  D.12.1.7 powerpolyX Procedure from libraryaksaka.lib(see  aksaka_lib).
 
Example:Usage:
powerpolyX(q,n,a,r);
Return:
the q-th power of poly a modulo poly r and number n
 |  | LIB "aksaka.lib";
ring R=0,x,dp;
poly a=3*x3-x2+5;
poly r=x7-1;
bigint q=123;
bigint n=5;
powerpolyX(q,n,a,r);
==> 3x5+2x4+x3+x2+1
 | 
 
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