How mathematicians use it: > to mark passages tricky on a first reading or with an especially difficult argument. When I try this (on macOS) echo -e "\u26A0"

How mathematicians use it: > to mark passages tricky on a first reading or with an especially difficult argument. When I try this (on macOS) echo -e "\u26A0" it gives the 'triangle with an exclamation mark in it' icon (i.e. https://imgur.com/a/SJbl67s https://imgur.com/a/SJbl67s). I think there's no exact unicode equivalent of the dangerous bend symbol?