How to eliminate duplicate elements from a vector?

[Cornel]

Hello,

I have this vector:

I want automatically to eliminate duplicate elements, and to retain only those elements which are not duplicate from the vector:

How to do this?

[LucMeekes · Accepted solution]

Here's one method:

example:

Success!
Luc

[Cornel]

Thank you.
If there are other solutions and other ideas (from anyone) they are welcome as well.

[Cornel]

@LucMeekes 

Why in the second case function does not work properly? Why I need to give separately entire vector, and not t variable? In the first case it worked...

[LucMeekes]

Probably the cause is numerical (in)accuracy. Your numbers have 17 significant digits at most. The set() function requires exact equality.

Success!
Luc

[Cornel]

Ah, ok

[Werner_E]

[Cornel]

@LucMeekes 

OK

Not OK

Is it possible to modify the above set() function in order to accept also a matrix?

[LucMeekes]

Do you want them by column:

or over the entire matrix:

Which can also be:

Success!
Luc

[Cornel]

[ttokoro]

[Cornel]

@LucMeekes @Werner_E  @ttokoro 
Ok. Thank you all.