From: Keyne Dirks on
Is there an easy way to remove nearly duplicate entries from a vector.

Lets say I have a vector 'b' with four complex numbers:

b =
-0.940695022020893 - 0.338266306091317i
-0.940695022020893 + 0.338266306091317i
-0.941324562670116 - 0.338492683806694i
-0.941324562670116 + 0.338492683806694i

As you can see the 1st and 3rd numbers are nearly the same and the 2nd and 4th are also almost the same. I would like to be able to detect that these are about the same and discard one of them.

Thanks in advance!