Element-wise power

`C = `

raises
each element of `A`

.^`B`

`A`

to the corresponding powers in
`B`

. 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.