"""
# Numerix

Fancy numerics made easy.
"""

# Functions defined directly in __init__.py can be imported directly
# from the package (e.g. from numerix import add_four):
def add_four(x):
    """Add four to a number.

    Parameters
    ----------
    x: int or float
        A number.

    Returns
    -------
    y: int or float
       `x` plus 4.
    """
    return x + 4


# Functions from the modules of the package can be imported into the
# namespace of the package:
from .addition import add_two
from .version import __version__