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H-bar or h-bar can refer to: H with stroke, a Latin letter H with a doubled horizontal stroke (Ħ ħ) Voiceless pharyngeal fricative, represented in IPA by ħ Reduced Planck constant, in which the above symbol represents as a mathematical symbol, ħ = h / 2π Antihydrogen, an antimatter element represented by the symbol H
In Unicode, the special character ℏ (U+210F), represents the reduced Planck constant (h/2π) of quantum mechanics. [2] In this context, it is pronounced "h-bar". The lowercase resembles the Cyrillic letter Tshe (ћ), or the astronomical symbol of Saturn (♄). A white uppercase Ħ on a red square was the logo of Heritage Malta until 2022. [3]
The reserved code points (the "holes") in the alphabetic ranges up to U+1D551 duplicate characters in the Letterlike Symbols block. In order, these are ℎ / ℬ ℰ ℱ ℋ ℐ ℒ ℳ ℛ / ℯ ℊ ℴ / ℭ ℌ ℑ ℜ ℨ / ℂ ℍ ℕ ℙ ℚ ℝ ℤ.
A mathematical symbol is a figure or a combination of figures that is used to represent a mathematical object, an action on mathematical objects, a relation between mathematical objects, or for structuring the other symbols that occur in a formula. As formulas are entirely constituted with symbols of various types, many symbols are needed for ...
Code chart ∣ Web page Note : [ 1 ] [ 2 ] Supplemental Mathematical Operators is a Unicode block containing various mathematical symbols, including N-ary operators, summations and integrals, intersections and unions, logical and relational operators, and subset/superset relations.
A numeric character reference refers to a character by its Universal Character Set/Unicode code point, and a character entity reference refers to a character by a predefined name. A numeric character reference uses the format &#nnnn; or &#xhhhh; where nnnn is the code point in decimal form, and hhhh is the code point in hexadecimal form.
Greek letters are used in mathematics, science, engineering, and other areas where mathematical notation is used as symbols for constants, special functions, and also conventionally for variables representing certain quantities. In these contexts, the capital letters and the small letters represent distinct and unrelated entities.
H with stroke: Voiceless pharyngeal fricative; Maltese; Superscript 𐞕 is an IPA superscript letter [7] Ħ̥ ħ̥: H with stroke and ring below Ɦ ɦ ʱ: H with hook: Voiced glottal fricative; Dagaare, Massa Ⱨ ⱨ H with descender: Uyghur. c.f. Cyrillic: Ҙ ҙ ꞕ H with palatal hook: Lithuanian dialectology [40] [41] h̢: H with retroflex ...