# Singular

### 5.1.140 size

`Syntax:`
`size (` string_expression `)`
`size (` bigint_expression `)`
`size (` number_expression `)`
`size (` intvec_expression `)`
`size (` intmat_expression `)`
`size (` poly_expression `)`
`size (` vector_expression `)`
`size (` ideal_expression `)`
`size (` module_expression `)`
`size (` matrix_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, list or resolution
returns the length, i.e., the number of characters, entries or elements.
poly or vector
returns the number of monomials.
matrix 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.