Symbols:N

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nano-

$\mathrm n$

The Système Internationale d'Unités symbol for the metric scaling prefix nano, denoting $10^{\, -9 }$, is $\mathrm { n }$.

Its $\LaTeX$ code is \mathrm {n} .

Multiary

$n$-

When indicating an unspecified but finite number of objects in a concept, the prefix $n$- is frequently used, as for example:

ordered $n$-tuple

$n$-dimensional

$n$-ary

$n$-gon

Its $\LaTeX$ code is n .

Amount of Substance

$n$

The usual symbol used to denote the amount of substance in a body is $n$.

Its $\LaTeX$ code is n .

Cardinality

$\map n S$

The cardinality of a set $S$ can be denoted:

$\map n S$

Its $\LaTeX$ code is \map n S .

Set of Natural Numbers

$\N$

The set of natural numbers:

$\N = \set {0, 1, 2, 3, \ldots}$

The $\LaTeX$ code for \(\N\) is \N  or \mathbb N or \Bbb N.

Set of Non-Zero Natural Numbers

$\N_{> 0}$ or $\N_{\ne 0}$

The set of non-zero natural numbers:

$\N_{> 0} = \set {1, 2, 3, \ldots}$

The $\LaTeX$ code for \(\N_{> 0}\) is \N_{> 0}  or \mathbb N_{> 0} or \Bbb N_{> 0}.

The $\LaTeX$ code for \(\N_{\ne 0}\) is \N_{\ne 0}  or \mathbb N_{\ne 0} or \Bbb N_{\ne 0}.

Initial Segment of Natural Numbers

$\N_n$, $\N^*_n$

The set $\N_n$ is the set of all natural numbers which are less than $n$:

$\N_n = \set {x \in \N: x < n} = \set {0, 1, 2, \ldots, n - 1}$

The $\LaTeX$ code for \(\N_n\) is \N_n  or \mathbb N_n or \Bbb N_n.

Similarly, the set $\N^*_n$ is the set of all non-zero natural numbers which are less or equal to $n$:

$\N^*_n = \set {x \in \N^*: x \le n} = \set {1, 2, \ldots, n}$

The $\LaTeX$ code for \(\N^*_n\) is \N^*_n  or \mathbb N^*_n or \Bbb N^*_n.

Newton

$\mathrm N$

The symbol for the newton is $\mathrm N$.

Its $\LaTeX$ code is \mathrm N .

Avogadro's Number

$N_A$

A symbol often used for Avogadro's number is $N_A$.

Its $\LaTeX$ code is N_A .

North

$\mathrm N$

North (Terrestrial)

North is the direction on (or near) Earth's surface along the meridian directly towards the North Pole.

North (Celestial)

The $\LaTeX$ code for \(\mathrm N\) is \mathrm N .

Northeast

$\mathrm {NE}$

Northeast is the direction on (or near) Earth's surface halfway between north and east.

The $\LaTeX$ code for \(\mathrm {NE}\) is \mathrm {NE} .

Northwest

$\mathrm {NW}$

Northwest is the direction on (or near) Earth's surface halfway between north and west.

The $\LaTeX$ code for \(\mathrm {NW}\) is \mathrm {NW} .

Nanometre

$\mathrm {n m}$

The symbol for the nanometre is $\mathrm {n m}$.

$n$ for nano

$\mathrm m$ for metre.

Its $\LaTeX$ code is \mathrm {n m} .

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