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Sum of `fi`

array elements

returns the
sum along different dimensions of the `S`

= sum(`A`

)`fi`

array
`A`

.

If

`A`

is a vector,`sum(`

returns the sum of the elements.`A`

)If

`A`

is a matrix,`sum(`

treats the columns of`A`

)`A`

as vectors, returning a row vector of the sums of each column.If

`A`

is a multidimensional array,`sum(`

treats the values along the first non-singleton dimension as vectors, returning an array of row vectors.`A`

)

`sum`

does not support`fi`

objects of data type`Boolean`

.