# Symbols:H

Jump to navigation
Jump to search

## Contents

## 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`

.