Function zeros

numpy/matlib.py:111–153

Return a matrix of given shape and type, filled with zeros. Parameters ---------- shape : int or sequence of ints Shape of the matrix dtype : data-type, optional The desired data-type for the matrix, default is float. order : {'C', 'F'}, optional Whe

(shape, dtype=None, order='C')

    return a

def zeros(shape, dtype=None, order='C'):
    """
    Return a matrix of given shape and type, filled with zeros.

    Parameters
    ----------
    shape : int or sequence of ints
        Shape of the matrix
    dtype : data-type, optional
        The desired data-type for the matrix, default is float.
    order : {'C', 'F'}, optional
        Whether to store the result in C- or Fortran-contiguous order,
        default is 'C'.

    Returns
    -------
    out : matrix
        Zero matrix of given shape, dtype, and order.

    See Also
    --------
    numpy.zeros : Equivalent array function.
    matlib.ones : Return a matrix of ones.

    Notes
    -----
    If `shape` has length one i.e. ``(N,)``, or is a scalar ``N``,
    `out` becomes a single row matrix of shape ``(1,N)``.

    Examples
    --------
    >>> import numpy.matlib
    >>> np.matlib.zeros((2, 3))
    matrix([[0.,  0.,  0.],
            [0.,  0.,  0.]])

    >>> np.matlib.zeros(2)
    matrix([[0.,  0.]])

    """
    a = ndarray.__new__(matrix, shape, dtype, order=order)
    a.fill(0)
    return a

def identity(n, dtype=None):
    """