${\displaystyle \ell ^{p}}$

${\displaystyle p}$

Some special cases:

• When p = 2/3 (0.666...), its shape coincides with an astroid
• When p = 1, it represents the Manhattan distance
• When p = 2, it represents the Euclidean distance
• When p = 4, its shape coincides with a squircle
• When p = ∞, it represents the Chebyshev distance