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===Use in the Portuguese Empire<!-- start of anchors attached to this heading; do not alter the anchors when changing the heading only --><span class="anchor" id="Cifrão"></span><span class="anchor" id="Cifrao"></span><!-- end of anchors -->===
[[File:Car with price.jpg|thumb|Car for sale in Cape Verde, showing use of the ''cifrão'' as decimals separator]]
In Portugal, Brazil, and other parts of the [[Portuguese Empire]], the two-stroke variant of the sign (with the name '''{{lang|pt|[[cifrão]]}}'''
In 1911, Portugal redefined the national currency as the [[Portuguese escudo|escudo]], worth {{val|1000|u=réis}}, and divided into 100 {{lang|pt|centavos|nocat=yes}}; but the ''cifrão'' continued to be used as the [[decimal point|decimal separator]],<ref name=silva2019/> so that {{Cifrão|123|50}} meant {{val|123.50|u=escudos}} or 123 escudos and 50 centavos. This usage ended in 2002 when the country switched to the [[euro]]. (A similar scheme to use a letter symbol instead of a decimal point is used by the [[RKM code]] in electrical engineering since 1952.)
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Among others, the following fonts display a double-bar dollar sign for code point 0024:{{Citation needed|date=February 2011}} regular-weight [[Baskerville]], [[Big Caslon]], [[Bodoni MT]], [[Garamond]]: (<span style="font-family:Bodoni MT, Big Caslon, Garamond, Baskerville, Brush Script MT, STFangsong, STKaiti, STSong, serif">$</span>) <!-- Please do not add any font that does not have its own article. The list is already long enough to illustrate the point. -->
In [[LaTeX]], with the {{Proper name|textcomp}} package installed, the {{lang|pt|cifrão}} (<span style="color: black !important; background-color: white !important;">{{dollar2}}</span>) can be input using the command <code>\textdollaroldstyle</code>.
===Programming languages===
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