4.13.1 module declarations

Syntax:

module name = list_of_vector_expressions ;
module name = module_expression ;

Purpose:

defines a module.

Default:

[0]

Example:

ring r=0,(x,y,z),(c,dp); vector s1 = [x2,y3,z]; vector s2 = [xy,1,0]; vector s3 = [0,x2-y2,z]; poly f = xyz; module m = s1, s2-s1,f*(s3-s1); m; ==> m[1]=[x2,y3,z] ==> m[2]=[-x2+xy,-y3+1,-z] ==> m[3]=[-x3yz,-xy4z+x3yz-xy3z] // show m in matrix format (columns generate m) print(m); ==> x2,-x2+xy,-x3yz, ==> y3,-y3+1, -xy4z+x3yz-xy3z, ==> z, -z, 0