Assertion: ball | /r/Synonym | metric
Facets:
value: often
type: TEMPORAL
Source sentences:
text: For n = 2, in a 2-dimensional plane R 2 {\displaystyle \mathbb {R} ^{2}} , "balls" according to the L 1 -norm (often called the taxicab or Manhattan metric) are bounded by squares with their diagonals parallel to the coordinate axes; those according to the L ∞ -norm, also called the Chebyshev metric, have squares with their sides parallel to the coordinate axes as their boundaries.