Template documentationThis template may be used to enclose text between a pair of double vertical bars (U+2016 ‖ DOUBLE VERTICAL LINE), such as to denote the norm. It adds padding (of width 0.1 em) on each side inside the bars.
Usage
When {{math|{{norm|''x''}} < 7}}, the function is positive.
When ‖x‖ < 7, the function is positive.
The notation {{math|{{norm}}}} means ''norm''.
The notation ‖ · ‖ means norm.