Addition

`C = `

adds
arrays `A`

+ `B`

`A`

and `B`

by adding corresponding
elements. The sizes of `A`

and `B`

must be the
same or be compatible.

If the sizes of `A`

and `B`

are compatible, then
the two arrays implicitly expand to match each other. For example, if one of
`A`

or `B`

is a scalar, then the scalar is
combined with each element of the other array. Also, vectors with different
orientations (one row vector and one column vector) implicitly expand to form a
matrix.