Character set "[\u{222B}-\u{2233}]"

Set

Code point	Character	Name
U+222B	`∫`	`INTEGRAL`
U+222C	`∬`	`DOUBLE INTEGRAL`
U+222D	`∭`	`TRIPLE INTEGRAL`
U+222E	`∮`	`CONTOUR INTEGRAL`
U+222F	`∯`	`SURFACE INTEGRAL`
U+2230	`∰`	`VOLUME INTEGRAL`
U+2231	`∱`	`CLOCKWISE INTEGRAL`
U+2232	`∲`	`CLOCKWISE CONTOUR INTEGRAL`
U+2233	`∳`	`ANTICLOCKWISE CONTOUR INTEGRAL`