TITLE: Is there a name for the function $\max(x, 0)$?
QUESTION [40 upvotes]: Is there a name for the function $ \max(x, 0) $?
For comparison, the function $ \max(x, -x) $ is known as the absolute value or modulus of x, and has its own notation $ |x| $.

REPLY [20 votes]: Wikipedia calls this the ramp function and notes that it can be written using Macaulay brackets.

$ \{x\} = \begin{cases} 0, & x < 0 \\ x, & x \ge 0. \end{cases} $