dear rick
when i conduct the command untill end in next page in 11.3.2.3 in page 206 i saw so many errors and one of these errors for example after this eq. Weight = eta + eps; ERROR: (execution) Matrix has not been set to a value.
and others
ERROR 22-322: Syntax error, expecting one of the following: a name, a quoted string, a numeric constant, a datetime constant,
a missing value, (, _ALL_, _CHAR_, _NUM_, {.
ERROR 200-322: The symbol is not recognized and will be ignored.
and
ERROR 76-322: Syntax error, statement will be ignored.

regards