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Unicode char \u8 not represented... #12988

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mcprentiss opened this issue Sep 6, 2015 · 8 comments
Closed

Unicode char \u8 not represented... #12988

mcprentiss opened this issue Sep 6, 2015 · 8 comments
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docs This change adds or pertains to documentation

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@mcprentiss
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! Package inputenc Error: Unicode char \u8:≈ not set up for use with LaTeX.
l.25116 The binary operator \code{≈}
is equivalent to \code{isapprox} with...

Unicode char .ALMOST EQUAL TO' is not represented in LaTex.

It prevents make latexpdf compilation of the documentation.
This character affects math.rst and test.rst in doc/stdlib.
There have been others like this, and I think requires a hard coded hack.
@IainNZ
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IainNZ commented Sep 6, 2015

Yeah you probably can't build the docs with LaTeX now, and no one has probably even tried. XeTeX or LuaTeX should work.

@jiahao
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jiahao commented Sep 6, 2015

See #8479 #9012 for what to do

@jiahao jiahao added the docs This change adds or pertains to documentation label Sep 6, 2015
@jiahao
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jiahao commented Sep 6, 2015

A PR would be very much appreciated!

@mcprentiss
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thx.
The good news is
\DeclareUnicodeCharacter{2248}{\ensuremath{\approx}}
fixes the above problem in conf.py. But...
\DeclareUnicodeCharacter{2249}{\ensuremath{\napprox}}
does not fix the same problem ?!?!.
I am working on it.

@jiahao
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jiahao commented Sep 10, 2015

\napprox is not defined in the standard LaTeX or amsmath environment. You need \not\approx to get the negated operator.

@jiahao jiahao closed this as completed in 8dfdeaf Sep 10, 2015
jiahao added a commit that referenced this issue Sep 10, 2015
@jiahao @tkelman
Docs: Define ≈, ≉ for use in LaTeX
9103ebe 
PDF docs now build again.

Fix #12988

(cherry picked from commit 8dfdeaf)
@mcprentiss
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Well done. I was using \napprox and \usepackage{mathabx}. This created an avalanche of
latex conflicts.

Are any of the docs tested upon new pull requests? It is troubling that make latexpdf had been broken and committed.

@jiahao
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jiahao commented Sep 10, 2015

No; see #7691 #7753

@mcprentiss
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got it. thx.

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@jiahao @IainNZ @mcprentiss