@acer 

is it a bug ? may I change my habits ?

@Carl Love 

Whatever the name of the shown material, the most important point is that eval does not work as expected.

@Alejandro Jakubi 

and it appears that eval(sqrt) shows the sqrt modue body in tha command line interface.

So, my understanding is now that it is an interface Bug.

I am running 2015.0, is this issue fixed in 2015.1 ?

@Alejandro Jakubi 

This exactly my point.