Definition:Angstrom (Unit)

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The angstrom is a metric unit of length.

\(\ds \) \(\) \(\ds 1\) angstrom
\(\ds \) \(=\) \(\ds 10^{-4}\) micrometres
\(\ds \) \(=\) \(\ds 10^{-7}\) millimetres
\(\ds \) \(=\) \(\ds 10^{-10}\) metres


$\mathring {\mathrm A}$

The symbol for the angstrom is $\mathring {\mathrm A}$.

Its $\LaTeX$ code is \mathring {\mathrm A} .

Source of Name

This entry was named for Anders Jonas Ångström.

Linguistic Note

The word angstrom is derived from a Swedish name, and properly has diacritics: ångström.

However, this "correct" presentation is tedious to implement and a nuisance to maintain, so $\mathsf{Pr} \infty \mathsf{fWiki}$ prefers the simple version angstrom.

Its symbol, however, does need the small circle above the A in order to be accurate and unambiguous.

This, unfortunately, is not straightforward to render in $\LaTeX$ without including further expansion sets.

Hence the $\LaTeX$ form as $\mathring {\mathrm A}$ (not a strictly accurate rendition) is how it is presented on $\mathsf{Pr} \infty \mathsf{fWiki}$.