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} .


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.


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)

Definition: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} .