Thread: opeartor ||X||

whats the || operator used as: ||X||
or what is this ( || ) notation called

It's the symbol for a vector norm.

Norm (mathematics) - Wikipedia, the free encyclopedia

Originally Posted by amrita.jain

whats the || operator used as: ||X||
or what is this ( || ) notation called

If you are asking what means, it means the absolute value of x, which is the distance from 0.

and if you are asking what means, I have only seen that as the magnitude of a vector

Hello,

I stopped my reading at the first line of mathstud

tired... *scuzi*

Originally Posted by amrita.jain

whats the || operator used as: ||X||
or what is this ( || ) notation called

Originally Posted by Mathstud28

If you are asking what means, it means the absolute value of x, which is the distance from 0.

and if you are asking what means, I have only seen that as the magnitude of a vector

Originally Posted by Moo

Hello,



The absolute value is just a particular norm, dimension 1. The question has been clearly asked, with ||X||.

I'd suggest you to read things about that before replying this way...

While I am not one to stand up for Mathstud, the notation the OP used in the brackets is that for absolute value. He(Mathstud) also did give the answer to both possibilities.

While I am not one to stand up for Mathstud

thanks all for the reply
and spl thanks to sean.1986..i get it now