| $ | component selection |
| [...] [[...]] | subscripts |
| ^ | exponentiation |
| - | unary minus |
| : | sequence operator |
| %...% | special operators |
| * / | multiplication division |
| + - | addition subtraction |
| < > <= >= == != | comparison operators |
| ! | logical not |
| & | && || | logical and or |
| <- <<- -> _ | assignment |
If you don't remember the precedence then just make use of round parentheses ( and ) to group the expression so it is unambiguous.