Return coordinate matrices from two coordinate vectors.
Parameters:  x, y : ndarray


Returns:  X, Y : ndarray

See also
Examples
>>> X, Y = np.meshgrid([1,2,3], [4,5,6,7])
>>> X
array([[1, 2, 3],
[1, 2, 3],
[1, 2, 3],
[1, 2, 3]])
>>> Y
array([[4, 4, 4],
[5, 5, 5],
[6, 6, 6],
[7, 7, 7]])
meshgrid is very useful to evaluate functions on a grid.
>>> x = np.arange(5, 5, 0.1)
>>> y = np.arange(5, 5, 0.1)
>>> xx, yy = np.meshgrid(x, y)
>>> z = np.sin(xx**2+yy**2)/(xx**2+yy**2)