symbol in the axis function shaft

[MARCOC]

hello to everything, I've come across the tree of functions in the together, symbols I've never seen and I don't know how I made them appear and what they are

I'll put it on

I wonder what they are and how do I remove them? ? ?

Thank you very much

 

[MassiVonWeizen]

http://help.solidworks.com/2017/italian/solidworks/sldworks/c_understanding_the_update_path.htm

 

[MARCOC]

Thank you