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7.7.9.0. vct2str
Procedure from library freegb.lib (see freegb_lib).
- Usage:
- vct2str(v[,n]); v a vector, n an optional integer
- Return:
- string
- Purpose:
- convert a vector into a word in free algebra
- Note:
- if an optional integer is not 0, stars signs are used in multiplication
Example:
| | LIB "freegb.lib";
ring r = (0,a),(x,y3,z(1)),dp;
vector v = [-7,x,y3^4,x2,z(1)^3];
vct2str(v);
==> -7xy3y3y3y3xxz(1)z(1)z(1)
vct2str(v,1);
==> -7*x*y3*y3*y3*y3*x*x*z(1)*z(1)*z(1)
vector w = [-7a^5+6a,x,y3,y3,x,z(1),z(1)];
vct2str(w);
==> (-16807*a^5+6*a)xy3y3xz(1)z(1)
vct2str(w,1);
==> (-16807*a^5+6*a)*x*y3*y3*x*z(1)*z(1)
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