### Other new features

- Enhanced text mode accepts U+xxxx (xxxx is a 4 or 5 character hexadecimal) as representing a Unicode code point that is converted to the corresponding UTF-8 byte sequence on output.
- The character sequence $# in a using specifier evaluates to the total number of columns available in the current line of data. For example "plot FOO using 0:(column($# - 1))" plots the last-but-one field of each row.
- Time/date input recognizes format %p to handle am/pm field
- plot titles are evaluated *after* plotting, rather than before. This allows the title to reference quantities calculated while plotting.
- Built-in modified Bessel functions (besi0 besi1 besin)
- Built-in order N Bessel functions of the 1st and 2nd kind (besjn besyn)