LENGTH

Number of elements in A

`[SPU LENGTH A OUT Y NROW NCOL N]`

If A is a numerical data element (number, vector or matrix), the dimensions of A are stored in the outputs.

Out	Description
`Y`	number of rows; 1 if `A` is a number and >1 otherwise
`NROW`	number of rows; 1 if `A` is a number and >1 otherwise
`NCOL`	number of columns; 1 if `A` is a number or vector and >1 otherwise
`N`	number of elements = number of rows * number of columns

Note: The output values are assigned during the SPU initialization and cannot be changed during execution.