TSql Preceding Backslash Changes column Value - sql-server

Question

So, I fat fingered something when typing my commands and ended up discovering that a preceding backslash before a column name makes the result set return as zeros - for multiple data types.
Why is that?
Screen cap for example:

Answer 1

It appears SELECT \ just returns 0.00. The column name following is added as a label similar to using AS. I am not sure why \ equates to 0.00.

Answer 2

The answer as gleaned from comments is that SQL Server considers a backslash a currency symbol. This can be observed with the results of this query, which returns zero values of type money:
SELECT \ AS Backslash, ¥ AS Yen, $ AS Dollar;
Results:
+-----------+------+--------+
| Backslash | Yen | Dollar |
+-----------+------+--------+
| 0.00 | 0.00 | 0.00 |
+-----------+------+--------+
Getting result set metadata using sp_describe_first_result_set shows the money type is returned:
EXEC sp_describe_first_result_set N'SELECT \ AS Backslash, ¥ AS Yen, $ AS Dollar;';
Results (extraneous columns omitted):
+-----------+----------------+-----------+-------------+----------------+------------------+------------+-----------+-------+
| is_hidden | column_ordinal | name | is_nullable | system_type_id | system_type_name | max_length | precision | scale |
+-----------+----------------+-----------+-------------+----------------+------------------+------------+-----------+-------+
| 0 | 1 | Backslash | 0 | 60 | money | 8 | 19 | 4 |
| 0 | 2 | Yen | 0 | 60 | money | 8 | 19 | 4 |
| 0 | 3 | Dollar | 0 | 60 | money | 8 | 19 | 4 |
+-----------+----------------+-----------+-------------+----------------+------------------+------------+-----------+-------+
The behavior is especially unintuitive in this case because SQL Server allows one to specify a currency prefix without an amount as a money literal. The resultant currency value is zero when no amount is specified.
This Wiki article calls out the general confusion with the backslash and yen mark. This can be observed from SSMS by running the query below to return a backslash string literal. When the results are displayed with font MS Gothic, for example, the resultant character glyph is ¥ (yen mark) instead of the expected backslash:
SELECT '\' AS Backslash;
Results:
+-----------+
| Backslash |
+-----------+
| ¥ |
+-----------+