H

Ħħ

The letter Ħ or small ħ ( h across ), an H / h with a slash , is a letter of the Maltese alphabet. It stands for a voiceless, originally pharyngeal fricative [⁠ ħ ⁠] and corresponds to the classical Arabic ح . In the modern Maltese the letter when he stands alone as a velar fricative [⁠ x ⁠] given; it also occurs in the digraph "għ" or "Għ".

In physics , the symbol of the same name “ℏ” (U + 210F) stands for the reduced Planck quantum , while Planck's quantum is denoted by a . ${\displaystyle h}$ ${\displaystyle \left(\hbar ={\frac {h}{2\pi }}\right)}$

Presentation on the computer

ISO 8859

In the codes of the ISO 8859 family, the Ħ only occurs in ISO 8859-3 . The capital letter Ħ is in position A1 and the lower case letter ħ is in position B1.

ISO 6937

In ISO 6937 , the capital letter has the position E4 and the lower case letter has the position F4.

Unicode

The Unicode coding is U + 0126 for “Ħ” and U + 0127 for “ħ”, the symbol for Planck's quantum of action has its own coding, U + 210F . And in HTML & # 8463; for Planck's quantum of action and & # 294; and & # 295; for "Ħ" and "ħ".

TeX and LaTeX

The Maltese letter Ħ is not included in standard TeX and LaTeX . With the fc fonts you get it with the macros \ B {H} for the capital "Ħ" and \ B {h} for the small "ħ".

The TeX macro for Planck's quantum of action "ħ" is \ hbar and can only be reached in TeX mathematical mode. It is part of the standard scope of TeX. With the AMS symbols , a better representation ( using a separate character) is possible.

HTML

The named HTML character entities are Ħfor the capital große and ħfor the small ħ.