zeros after #6
Description
We have
In [9]: ring.all
Out[9]: array([ 2.1, 1.2, 0. , 0. , 0. , 0. , 0. , 0. , 0. , 0. ])
which is displayed as
array([ 0. , 0. , 0. , 0. , 0. , 0. , 0. , 0. , 1.2, 2.1 ])
we might also have a method to display data as
array([ 1.2, 2.1, 0. , 0. , 0. , 0. , 0. , 0. , 0. , 0. ])
which should be
In [10]: ring.????
Out[9]: array([ 0. , 0. , 0. , 0. , 0. , 0. , 0. , 0. , 2.1, 1.2 ])