Determine whether array is scalar array
#include "matrix.h" bool mxIsScalar(const mxArray *array_ptr);
array_ptrPointer to an mxArray
Logical 1 (true) if the
mxArray has 1-by-1
dimensions. Otherwise, it returns logical 0
(false).
Note
Only use mxIsScalar for mxArray classes with
IDs documented by mxClassID.