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Diffstat (limited to 'numpy/doc/glossary.py')
| -rw-r--r-- | numpy/doc/glossary.py | 51 |
1 files changed, 48 insertions, 3 deletions
diff --git a/numpy/doc/glossary.py b/numpy/doc/glossary.py index 6a182adf4..f591a5424 100644 --- a/numpy/doc/glossary.py +++ b/numpy/doc/glossary.py @@ -1,7 +1,7 @@ """ -================= +======== Glossary -================= +======== along an axis Axes are defined for arrays with more than one dimension. A @@ -23,7 +23,7 @@ along an axis >>> x.sum(axis=1) array([ 6, 22, 38]) -array or ndarray +array A homogeneous container of numerical elements. Each element in the array occupies a fixed amount of memory (hence homogeneous), and can be a numerical element of a single type (such as float, int @@ -60,6 +60,9 @@ attribute >>> x.shape (3,) +BLAS + `Basic Linear Algebra Subprograms <http://en.wikipedia.org/wiki/BLAS>`_ + broadcast NumPy can do operations on arrays whose shapes are mismatched:: @@ -79,6 +82,24 @@ broadcast See `doc.broadcasting`_ for more information. +C order + See `row-major` + +column-major + A way to represent items in a N-dimensional array in the 1-dimensional + computer memory. In column-major order, the leftmost index "varies the + fastest": for example the array:: + + [[1, 2, 3], + [4, 5, 6]] + + is represented in the column-major order as:: + + [1, 4, 2, 5, 3, 6] + + Column-major order is also known as the Fortran order, as the Fortran + programming language uses it. + decorator An operator that transforms a function. For example, a ``log`` decorator may be defined to print debugging information upon @@ -128,6 +149,12 @@ dictionary For more information on dictionaries, read the `Python tutorial <http://docs.python.org/tut>`_. +Fortran order + See `column-major` + +flattened + Collapsed to a one-dimensional array. See `ndarray.flatten`_ for details. + immutable An object that cannot be modified after execution is called immutable. Two common examples are strings and tuples. @@ -250,10 +277,28 @@ method >>> x.repeat(2) array([1, 1, 2, 2, 3, 3]) +ndarray + See *array*. + reference If ``a`` is a reference to ``b``, then ``(a is b) == True``. Therefore, ``a`` and ``b`` are different names for the same Python object. +row-major + A way to represent items in a N-dimensional array in the 1-dimensional + computer memory. In row-major order, the rightmost index "varies + the fastest": for example the array:: + + [[1, 2, 3], + [4, 5, 6]] + + is represented in the row-major order as:: + + [1, 2, 3, 4, 5, 6] + + Row-major order is also known as the C order, as the C programming + language uses it. New Numpy arrays are by default in row-major order. + self Often seen in method signatures, ``self`` refers to the instance of the associated class. For example: |