SUCH A GORGEOUS FORMULA !!

Dason

Ambassador to the humans
How would i have known that from the original post?

Dason

Ambassador to the humans
Either way...

1(Xi > 0) means it evaluates to 1 if Xi is greater than 0 and 0 if it isn't.

leoj

New Member
Either way...

1(Xi > 0) means it evaluates to 1 if Xi is greater than 0 and 0 if it isn't.
So, can we consider that the fancy 1 stands for the indicator function ?