my @a = [ 1, 4, 9, 16 ]; # squares
creates an anonymous array with 4 elements, and assigns a reference to this anonymous array — i.e., a single, scalar value — to be the first (and only) element of the named array @a.
I suspect that parentheses were intended rather than square brackets:
my @a = ( 1, 4, 9, 16 ); # squares
my @b = ( 1, 8, 27, 64 ); # cubes
my @c = ( \@a, \@b ); # two arrays
and then the rest of the original code behaves as intended.
Hope that helps,
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.
| & || & |
| < || < |
| > || > |
| [ || [ |
| ] || ] ||