Trace3 Answers

-------------------------------------------------

Example 1    | main |   f
             +------+-------+
             |  x   |   a   |
             +======+=======+
             |      | Call 1|
             +------+-------+
             |   3  |    3  |
             +======+=======+

             2 * x + 1 = 2 * 3 + 1 = 7   
Output: 
7

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Example 2    |       f      |
             +-------+------+
             |   a   |   s  |
             +==============+
             |     Call 1   |
             +-------+------+
             |   0   |   5  |
             |   0   |   5  |
             +=======+======+
             |     Call 2   |
             +-------+------+
             |   3   |   5  |
             |   3   |  11  |
             +=======+======+
             |     Call 3   |
             +-------+------+
             |   5   |   5  |
             |   5   |  15  |
             +=======+======+

Output:
0 5
3 11
5 15

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Example 3 |  main       |           f                       |
          +------+------+-------+------+-----+--------------+
          |   x  |   y  |   a   |   s  |  t  | Return Value |
          +======+======+==============+====================+
          |   1  |      |        Call 1                     |
          +------+------+-------+------+-----+--------------+
          |      |  12  |   3   |  24  |  7  |     12       |
          +======+======+=======+======+=====+==============+

Output:
11

-------------------------------------------------

Example 4    |           f                 |
             +-------+------+--------------+
             |   a   |   s  | Return Value |
             +==============+==============+
             |        Call 1               |
             +-------+------+--------------+
             |   0   |  -4  |     -4       |
             +=======+======+==============+
             |        Call 2               |
             +-------+------+--------------+
             |   3   |  14  |     14       |
             +=======+======+==============+
             |        Call 3               |
             +-------+------+--------------+
             |   5   |  36  |     36       |
             +=======+======+==============+

Output:
-4
14
36

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Example 5    |    main       |             f              |
             +---------------+----------------------------+
             |      x        |      a      | Return Value |
             +===============+============================+
             |               |           Call 1           |
             +---------------+----------------------------+
             |   "jewel"     |   "jewel"   |  "&JEWEL%"   |
             +---------------+============================+
             |"&$AB&JEWEL%Z)"!
             +---------------+
Output:
&$AB&JEWEL%Z)