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DELTA(1)	      User Contributed Perl Documentation	      DELTA(1)

NAME
       PDL::Delta - PDL	changes	between	V1.0 and V2.0

DESCRIPTION
       This file is an attempt to list the major user-visible changes between
       PDL versions 1.0	and 2.0.

Core Changes
   Piddles are not hashes any more:
	   $a =	zeroes 10,10;
	   $$a{FOO} = "bar"

       doesn't work. They are currently	scalar references (to opaque C
       structures in finer terms) because of speed as well as syntactic
       issues. If you want to have a hash, use

	   $a->hdr()

       which returns a reference to an anonymous hash. Also, subclassing works
       if you store a piddle in	the hash member	``PDL''.

       There are also many core	enhancements to	support	Dataflow and Slicing
       tricks, but these do not	introduce any incompatibilities.

   Incompatible	Changes	vs 1.11
       rgrep
	   Order of the	arguments has changed.

       copy method
	   No longer copies the	header.	This may not be	a misfeature.

Documentation Changes
       Many of the base	and library pods were updated.

SEE ALSO
       The Changes file	for exhaustive details on what changed.

       The INSTALL file	for how	to build PDL.

       The README file for general stuff.

HISTORY
       pdldelta	was inspired by	perldelta  man page in the Perl	5.004
       distribution.

perl v5.32.1			  2018-05-05			      DELTA(1)

NAME | DESCRIPTION | Core Changes | Documentation Changes | SEE ALSO | HISTORY

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