Determine if this array holds numeric values
An ILArray is stated to be 'numeric' as long as its inner type is one of the
following:
| inner type | |
|---|---|
| System.double | floating point, real, 8 bytes |
| System.float | floating point real, 4 bytes |
| ILNumerics.complex | floating point complex, 16 bytes |
| ILNumerics.fcomplex | floating point complex, 8 bytes |
| System.char | integer, real, 1 byte |
| System.byte | integer, real, 1 byte |
| System.Int16 | integer, real, 2 byte |
| System.Int32 | integer, real, 4 byte |
| System.Int64 | integer, real, 8 byte |
| System.UInt16 | unsigned integer, real, 2 byte |
| System.UInt32 | unsigned integer, real, 4 byte |
| System.UInt64 | unsigned integer, real, 8 byte |