Singular Manual: size

  | ### 5.1.144 size `Syntax:` `size (` string_expression `)` `size (` bigint_expression `)` `size (` number_expression `)` `size (` intvec_expression `)` `size (` bigintvec_expression `)` `size (` intmat_expression `)` `size (` poly_expression `)` `size (` vector_expression `)` `size (` ideal_expression `)` `size (` module_expression `)` `size (` matrix_expression `)` `size (` bigintmat_expression `)` `size (` list_expression `)` `size (` resolution_expression `)` `size (` ring_expression `)` `Type:` int `Purpose:` depends on the type of argument: ideal or module returns the number of (non-zero) generators. string, intvec, bigintvec, list or resolution returns the length, i.e., the number of characters, entries or elements. poly or vector returns the number of monomials. matrix, bigintmat or intmat returns the number of entries (rows*columns). ring returns the number of elements in the ground field (for Z/p and algebraic extensions) or -1 number or bigint returns 0 for 0 or the number of words `Example:`
        string s="hello";
        size(s);
      ==> 5
        intvec iv=1,2;
        size(iv);
      ==> 2
        ring r=0,(x,y,z),lp;
        poly f=x+y+z;
        size(f);
      ==> 3
        vector v=[x+y,0,0,1];
        size(v);
      ==> 3
        ideal i=f,y;
        size(i);
      ==> 2
        module m=v,[0,1],[0,0,1],2*v;
        size(m);
      ==> 4
        matrix mm[2][2];
        size(mm);
      ==> 4
        ring r1=(2,a),x,dp;
        minpoly=a4+a+1;
        size(r1);
      ==> 16
See ideal; intmat; intvec; module; ncols; nrows; poly; string; vector.

User manual for Singular version 4.3.2, 2023, generated by texi2html.