diff options
| -rw-r--r-- | doc/release/1.8.0-notes.rst | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/doc/release/1.8.0-notes.rst b/doc/release/1.8.0-notes.rst index 1750b5d14..660881464 100644 --- a/doc/release/1.8.0-notes.rst +++ b/doc/release/1.8.0-notes.rst @@ -2,7 +2,7 @@ NumPy 1.8.0 Release Notes ========================= -This release supports Python 2.6 -2.7 and 3.1 - 3.3. +This release supports Python 2.6 -2.7 and 3.2 - 3.3. Highlights @@ -39,7 +39,7 @@ system by exporting the shell variable NPY_SEPARATE_COMPILATION=0. For the AdvancedNew iterator the ``oa_ndim`` flag should now be -1 to indicate that no ``op_axes`` and ``itershape`` are passed in. The ``oa_ndim == 0`` -case, now indicates a 0-D iteration and ``op_axes`` being NULL and the old +case, now indicates a 0-D iteration and ``op_axes`` being NULL and the old usage is deprecated. This does not effect the ``NpyIter_New`` or ``NpyIter_MultiNew`` functions. @@ -47,8 +47,26 @@ usage is deprecated. This does not effect the ``NpyIter_New`` or New features ============ +new constant +------------ Euler's constant is now exposed in numpy as euler_gamma. +new modes for qr +---------------- +New modes 'complete', 'reduced', and 'raw' have been added to the qr +factorization and the old 'full' and 'economic' modes are deprecated. +The 'reduced' mode replaces the old 'full' mode and is the default as was +the 'full' mode, so backward compatibility can be maintained by not +specifying the mode. + +The 'complete' mode returns a full dimensional factorization, which can be +useful for obtaining a basis for the orthogonal complement of the range +space. The 'raw' mode returns arrays that contain the Householder +reflectors and scaling factors that can be used in the future to apply q +without needing to convert to a matrix. The 'economic' mode is simply +deprecated, there isn't much use for it and it isn't any more efficient +than the 'raw' mode. + Changes @@ -65,6 +83,8 @@ The separate compilation mode is now enabled by default. Deprecations ============ +The 'full' and 'economic' modes of qr factorization are deprecated. + General ------- |