Symbols:H
hecto-
- $\mathrm h$
The Système Internationale d'Unités symbol for the metric scaling prefix hecto, denoting $10^{\, 2 }$, is $\mathrm { h }$.
Its $\LaTeX$ code is \mathrm {h} .
Celestial Altitude
- $h$
Let $X$ be a point on the celestial sphere.
The (celestial) altitude of $X$ is defined as the angle subtended by the the arc of the vertical circle through $X$ between the celestial horizon and $X$ itself.
It is usually denoted by $h$.
Subgroup
- $H$
Frequently used to represent a general subgroup of a given group $G$.
Function
- $\map h x$
The letter $h$, along with $f$ and $g$, is frequently used to denote a general mapping or function.
The $\LaTeX$ code for \(\map h x\) is \map h x .
Hectometre
- $\mathrm {hm}$
The symbol for the hectometre is $\mathrm {hm}$:
Its $\LaTeX$ code is \mathrm {hm} .
Heaviside Step Function
- $\map H x$
The symbol used to denote the Heaviside step function is sometimes seen as $\map H x$.
The $\LaTeX$ code for \(\map H x\) is \map H x .
Harmonic Numbers
- $H_n$
The harmonic numbers are denoted $H_n$ and are defined for positive integers $n$:
- $\ds \forall n \in \Z, n \ge 0: H_n = \sum_{k \mathop = 1}^n \frac 1 k$
The $\LaTeX$ code for \(H_n\) is H_n .
General Harmonic Numbers
- $H_n^{\paren r} $
Let $r \in \R_{>0}$.
For $n \in \N_{> 0}$ the Harmonic numbers order $r$ are defined as follows:
- $\ds H_n^{\paren r} = \sum_{k \mathop = 1}^n \frac 1 {k^r}$
The $\LaTeX$ code for \(H_n^{\paren r}\) is H_n^{\paren r} .
Magnetic Field Strength
- $\mathbf H$
The usual symbol used to denote magnetic field strength is $\mathbf H$.
Its $\LaTeX$ code is \mathbf H .
Set of Quaternions
- $\Bbb H$
The set of quaternions.
The $\LaTeX$ code for \(\mathbb H\) is \mathbb H or \Bbb H.
Null Hypothesis
- $H_0$
Used to denote the null hypothesis:
In the context of a hypothesis test, the null hypothesis, usually denoted $H_0$, is the hypothesis which has been proposed for investigation.
The $\LaTeX$ code for \(H_0\) is H_0 .
Alternative Hypothesis
- $H_1$
Used to denote the alternative hypothesis:
In the context of a hypothesis test, the alternative hypothesis, usually denoted $H_1$, is the hypothesis which is to be accepted if the null hypothesis is demonstrated not to hold.
The $\LaTeX$ code for \(H_1\) is H_1 .
Hour Angle
- $\mathrm {HA}$
Used as an abbreviation and to denote the hour angle. Definition:Hour Angle
The $\LaTeX$ code for \(\mathrm {HA}\) is \mathrm {HA} .
Hertz
- $\mathrm {Hz}$
The symbol for the hertz is $\mathrm {Hz}$.
Its $\LaTeX$ code is \mathrm {Hz} .
Henry
- $\mathrm H$
The symbol for the henry is $\mathrm H$.
Its $\LaTeX$ code is \mathrm H .