=pod I> =head2 Perl Functions by Category X Here are Perl's functions (including things that look like functions, like some keywords and named operators) arranged by category. Some functions appear in more than one place. =over 4 =item Functions for SCALARs or strings X X X C, C, C, C, C, C, C, C, C, C, C, C, C, C, C, C, C, C, C, C, C, C =item Regular expressions and pattern matching X X X C, C, C, C, C, C, C =item Numeric functions X X X X C, C, C, C, C, C, C, C, C, C, C, C =item Functions for real @ARRAYs X C, C, C, C, C, C, C, C =item Functions for list data X C, C, C, C, C, C, C =item Functions for real %HASHes X C, C, C, C, C =item Input and output functions X X X X C, C, C, C, C, C, C, C, C, C, C, C, C, C, C, C, C, C, C, C