ℍ

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ℍ	U+210D, ℍ DOUBLE-STRUCK CAPITAL H

← ℌ
[U+210C]

Letterlike Symbols

ℎ →
[U+210E]

See also: Appendix:Variations of "h"

Translingual[edit]

Etymology[edit]

The first letter of the surname of William Rowan Hamilton (1805–1865), written in blackboard bold.

Symbol[edit]

ℍ

(mathematics) The symbol for the set of quaternions.

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