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Add hatnote pointing users to Layout, too
{{note|This article is about the data type. For the names of a page's many dimensions, see [[Layout]].}}
A dimension, in TeX, is a variable storing a length. The length is entered
as a number immediately followed by two letters that indicate the unit, e.g.
context.blackrule({width = double_A .. "sp"})
\stopluacode
</context>
;More examples:
<context mode=mkiv source=yes>
\newdimen\AAA \AAA=100pt
\newdimen\BBB \BBB=\AAA
AAA is \the\AAA
BBB is \the\BBB
</context>
[[Category:Programming]]
[[Category:Dimensions|!]]
