ℍ
Appearance
See also: Appendix:Variations of "h"
![]() | ||||||||
|
![]() | ||||||||
|
Translingual
[edit]Alternative forms
[edit]Etymology
[edit]From 𝐇, after the first letter of the surname of William Rowan Hamilton (1805–1865). The usage of blackboard bold dates to the 1960s.
Symbol
[edit]ℍ
- (mathematics) Alternative form of 𝐇, the set of quaternions.