Here's the problem, in TeXShop or TeXnicle, the following code complies without fuss:
\documentclass[10pt]{article}
%\usepackage{colortbl}
\usepackage{amsmath}
\begin{document}
\begin{center}
\begin{tabular}[b]{|c|c|}
\hline
Correct & Incorrect\\
$\begin{aligned}
3(2x-5)^2&=3(4x^2-20x+25)\\
&=12x^2-60x+75
\end{aligned}$
&
$\begin{aligned}
3(2x-5)^2&=(6x-15)^2\\
&=36x^2-180x+225
\end{aligned}$
\\
\hline
\end{tabular}
\end{center}
\end{document}
If, I instead, invoke colortbl - and I don't even call it:
No dice!
Errors galore:
Typesetting file:/Users/linovari/Documents/12MM[2017]/Unit 4 - Statistics/discrete
Typesetting with /Users/linovari/Library/Application Support/TeXnicle/engines/pdflatex.engine
[0/3] Typesetting file:/Users/linovari/Documents/12MM[2017]/Unit 4 - Statistics/discrete
****************************
*** Typsetting: discrete
*** Output dir: /Users/linovari/Documents/12MM[2017]/Unit 4 - Statistics
*** Output dir: .
*** N typeset: 3
*** Do bibtex: 1 (bibtex)
****************************
***------------------------------------------------------------
*** Run 1 of 3...
***------------------------------------------------------------
This is pdfTeX, Version 3.14159265-2.6-1.40.17 (TeX Live 2016) (preloaded format=pdflatex)
restricted \write18 enabled.
entering extended mode
(./discrete.tex
LaTeX2e <2017/01/01> patch level 3
Babel <3.9r> and hyphenation patterns for 83 language(s) loaded.
(/usr/local/texlive/2016/texmf-dist/tex/latex/base/article.cls
Document Class: article 2014/09/29 v1.4h Standard LaTeX document class
(/usr/local/texlive/2016/texmf-dist/tex/latex/base/size10.clo
))
(/usr/local/texlive/2016/texmf-dist/tex/latex/colortbl/colortbl.sty
(/Users/linovari/Library/texmf/tex/latex/misc/array.sty
Style-Option: `array' v2.0d <90/08/20> (F.M.)
English documentation dated <90/08/20> (F.M.)
)
(/usr/local/texlive/2016/texmf-dist/tex/latex/graphics/color.sty
(/usr/local/texlive/2016/texmf-dist/tex/latex/graphics-cfg/color.cfg
)
(/usr/local/texlive/2016/texmf-dist/tex/latex/graphics-def/pdftex.def
(/usr/local/texlive/2016/texmf-dist/tex/generic/oberdiek/infwarerr.sty
)
(/usr/local/texlive/2016/texmf-dist/tex/generic/oberdiek/ltxcmds.sty)
))
)
(/usr/local/texlive/2016/texmf-dist/tex/latex/amsmath/amsmath.sty
For additional information on amsmath, use the `?' option.
(/usr/local/texlive/2016/texmf-dist/tex/latex/amsmath/amstext.sty
(/usr/local/texlive/2016/texmf-dist/tex/latex/amsmath/amsgen.sty))
(/usr/local/texlive/2016/texmf-dist/tex/latex/amsmath/amsbsy.sty
)
(/usr/local/texlive/2016/texmf-dist/tex/latex/amsmath/amsopn.sty)
)
(./discrete.aux
)
(/usr/local/texlive/2016/texmf-dist/tex/context/base/mkii/supp-pdf.mkii
[Loading MPS to PDF converter (version 2006.09.02).]
)
Undefined control sequence.
<argument> ...\stretch {.5}\kern \z@ \d@llarbegin
\insert@column \d@llarend ...
l.7 \begin{tabular}[b]{|c|c|}
./discrete.tex:7: Undefined control sequence.
<argument> ...llarbegin \insert@column \d@llarend
\hskip \stretch {.5}\or \d...
l.7 \begin{tabular}[b]{|c|c|}
./discrete.tex:7: Undefined control sequence.
<argument> ...\stretch {.5}\kern \z@ \d@llarbegin
\insert@column \d@llarend ...
l.7 \begin{tabular}[b]{|c|c|}
./discrete.tex:7: Undefined control sequence.
<argument> ...llarbegin \insert@column \d@llarend
\hskip \stretch {.5}\or \d...
l.7 \begin{tabular}[b]{|c|c|}
[1{/usr/local/texlive/2016/texmf-var/fonts/map/pdftex/updmap/pdftex.map
./discrete.tex:7: Undefined control sequence.
<argument> ...\stretch {.5}\kern \z@ \d@llarbegin
\insert@column \d@llarend ...
l.7 \begin{tabular}[b]{|c|c|}
./discrete.tex:7: Undefined control sequence.
<argument> ...llarbegin \insert@column \d@llarend
\hskip \stretch {.5}\or \d...
l.7 \begin{tabular}[b]{|c|c|}
./discrete.tex:7: Undefined control sequence.
<argument> ...\stretch {.5}\kern \z@ \d@llarbegin
\insert@column \d@llarend ...
l.7 \begin{tabular}[b]{|c|c|}
./discrete.tex:7: Undefined control sequence.
<argument> ...llarbegin \insert@column \d@llarend
\hskip \stretch {.5}\or \d...
l.7 \begin{tabular}[b]{|c|c|}
[1{/usr/local/texlive/2016/texmf-var/fonts/map/pdftex/updmap/pdftex.map
}
]
(./discrete.aux) )
(see the transcript file for additional information)</usr/local/texlive/2016/te
xmf-dist/fonts/type1/public/amsfonts/cm/cmmi10.pfb
></usr/local/texlive/2016/tex
mf-dist/fonts/type1/public/amsfonts/cm/cmr10.pfb></usr/local/texlive/2016/texmf
-dist/fonts/type1/public/amsfonts/cm/cmr7.pfb
>
</usr/local/texlive/2016/texmf-di
st/fonts/type1/public/amsfonts/cm/cmsy10.pfb>
Output written on ./discrete.pdf (1 page, 35654 bytes).
SyncTeX written on ./discrete.synctex.gz.
Transcript written on ./discrete.log.
***------------------------------------------------------------
*** Running bibtex on discrete ...
***------------------------------------------------------------
This is BibTeX, Version 0.99d (TeX Live 2016)
The top-level auxiliary file: discrete.aux
I found no \citation commands---while reading file discrete.aux
I found no \bibdata command---while reading file discrete.aux
I found no \bibstyle command---while reading file discrete.aux
(There were 3 error messages)
Compile aborted.
*** pdflatex.engine has completed.
Any suggestions?
I've updated the packages TeXShop calls. Sorry, I'm not experienced enough to understand the errors. I've imported tons of examples that purportedly work, but for me they don't. colortbl seems to be the problem.
