(obsolete) left and right

flower / beauty / red-light district

flower / red-light district

Synonym of 梅の花 (ume no hana, “plum blossoms”) / Synonym of 菊の花 (kiku no hana, “chrysanthemum flowers”) / Synonym of 桜の花 (sakura no hana, “cherry blossoms”) / (colloquial) an imperial prince

(linear algebra, mathematics) symmetric matrix

symmetry (correspondence on either side of a dividing line, plane, center or axis)

perfectionism

(computing theory) Turing complete

perfect and without blemish; flawless

(number theory) perfect number, a positive integer that is equal to the sum of its positive divisors, excluding the number itself