size

Returns the size of a matrix or a pixmap.

Syntax

For a two-dimensional container, such as a matrix or a pixmap, size(X) returns the size of X as a structure with members rows and cols.

A vector is treated like a two-dimensional container in the form of a column matrix.

For all other objects, size(X) returns the structure struct("rows": 1, "cols": 1).

A ≔ ❨❨6, 3, 2, 0, 4, 5❩, ❨7, 0, 2, 1, 4, 2❩, ❨6, 2, 3, 1, 4, 2❩, ❨8, 0, 2, 3, 3, 5❩, ❨4, 2, 6, 3, 2, 0❩❩

⎛6  3  2  0  4  5⎞
⎜7  0  2  1  4  2⎟
⎜6  2  3  1  4  2⎟
⎜8  0  2  3  3  5⎟
⎝4  2  6  3  2  0⎠

size(A)

rows: 5
cols: 6

bm ≔ ComputePixmap(200, 200, x, y, rgb(x/199, y/199, 0.5))

A pixmap of size 200×200.

size(bm)

rows: 200
cols: 200

size(π)

rows: 1
cols: 1