: "¶" paragraph # PILCROW SIGN
: "¶" paragraph # PILCROW SIGN
: "±" plusminus # PLUS-MINUS SIGN
: "¿" questiondown # INVERTED QUESTION MARK
: "đ" dstroke # LATIN SMALL LETTER D WITH STROKE
}}}
is the Compose ('''Shift+AltGr''') key
To create your own set of compose keys copy the file /usr/share/X11/locale/en_US.UTF-8/Compose (or if you prefer the equivalent file for your locale) to your home directory as .XCompose
{{{ # cp /usr/share/X11/locale/en_US.UTF-8/Compose ~/.XCompose }}}
and edit this file.
= Unicode composition =
Another means to enter non-keycap characters is to enter them as Unicode character number.
Press '''Shift'''+'''Ctrl'''+'''U''', release '''U''', enter the hexadecimal (0123456789abcdef) Unicode character code point, then release '''Shift'''+'''Ctrl'''.
An underlined u followed by the number will be displayed as you type.
Alternatively, press (and release) '''Shift+Ctrl+U''', then, while underlined u is displayed, enter the hexadecimal Unicode character code point followed by .
{{{
Shift+Ctrl+U 00f4 ô (ô)
Shift+Ctrl+U 2203 ∃ (∃)
}}}
= References =
[[http://en.wikipedia.org/wiki/Compose_key]] - History about the Compose Key.
[[http://www.unicode.org/charts/charindex.html]] - The authority for ''unicode'' matters
[[https://www.x.org/releases/X11R7.7/doc/libX11/i18n/compose/en_US.UTF-8.html]] - Complete list of Xlib Compose Keys for en_US.UTF-8 (as of !X11R7.7)
[[http://www.haypocalc.com/wiki/Touche_compose]] (en français)
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