Numarray is an array processing package designed to efficiently
manipulate large multi-dimensional arrays.  Numarray is modelled after
Numeric and features c-code generated from python template scripts,
the capacity to operate directly on arrays in files, and improved type
promotions.

I. ENHANCEMENTS

1. Repackaging

numarray has been modified from a collection of Python modules into a
Python package.   See Doc/Repackaging in the source distribution for
more details.

2. Median Filter Function

See numarray.image.combine.median for a function which computes the
median pixels in a stack of images.

3. Thread Safety Work

Modifications to ufunc caching and IEEE error handling enable numarray
to work in multi-threaded programs.  This is barebones support, not
thread awareness.

II. BUGS FIXED

733534 Broadcasts of non-array sequences fails
733535 NA_typeNoToTypeObject sometimes fails
736674 PyArray_ContiguousFromObject() fails for some scalars
750320 CharArray.raw() is broken
750326 building RPMS fails
754836 Missing Src/_convmodule.c during setup
756050 chararray multi-d copy fails for recarray
772519 memory.new_memory() 64-bit scanning bug

III. CAUTIONS

1. Due to the distribution repackaging, numarray-0.6 will not install
correctly on top of an existing numarray installation. Before
installing numarray-0.6 remove your old version of numarray.

IV. REQUIREMENTS

numarray-0.6 requires Python 2.2.2 or greater.


V. AUTHORS

Numarray was written by Perry Greenfield, Rick White, Todd Miller, JC
Hsu, Paul Barrett, Phil Hodge at the Space Telescope Science
Institute.  Thanks go to Jochen Kupper of the University of North
Carolina for his work on Numarray and for porting the Numarray manual
to TeX format.  Thanks also to Edward C. Jones, Francesc Alted,
Paul Dubois, Eric Jones, Travis Oliphant, Pearu Peterson,
Konrad Hinsen, and everyone who has contributed with comments 
and feedback.

VI. LICENSE

Numarray is made available under a BSD-style License.  See
LICENSE.txt in the source distribution for details.


VII. WEB PAGE

<P><A HREF="http://www.stsci.edu/resources/software_hardware/numarray">numarray 0.6</A> - array processing extension supporting records and memory mapping.  (18-07-03)