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4.20.1 vector declarations

Syntax:
vector name = vector_expression ;

Purpose:
defines a vector of polynomials (an element of a free module).

Default:
[0]

Example:
 
  ring r=0,(x,y,z),(c,dp);
  poly s1 = x2;
  poly s2 = y3;
  poly s3 = z;
  vector v = [s1, s2-s1, s3-s1]+ s1*gen(5);
  // v is a vector in the free module of rank 5
  v;
==> [x2,y3-x2,-x2+z,0,x2]


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