Warning: this is an htmlized version!
The original is here, and
the conversion rules are here.
% (find-LATEX "2021-1-C2-integral-figuras.tex")
% (defun c () (interactive) (find-LATEXsh "lualatex -record 2021-1-C2-integral-figuras.tex" :end))
% (defun C () (interactive) (find-LATEXsh "lualatex 2021-1-C2-integral-figuras.tex" "Success!!!"))
% (defun D () (interactive) (find-pdf-page      "~/LATEX/2021-1-C2-integral-figuras.pdf"))
% (defun d () (interactive) (find-pdftools-page "~/LATEX/2021-1-C2-integral-figuras.pdf"))
% (defun e () (interactive) (find-LATEX "2021-1-C2-integral-figuras.tex"))
% (defun l () (interactive) (find-LATEX "2021-1-C2-critical-points.lua"))
% (defun u () (interactive) (find-latex-upload-links "2021-1-C2-integral-figuras"))
% (defun v () (interactive) (find-2a '(e) '(d)))
% (defun d0 () (interactive) (find-ebuffer "2021-1-C2-integral-figuras.pdf"))
% (defun cv () (interactive) (C) (ee-kill-this-buffer) (v) (g))
%          (code-eec-LATEX "2021-1-C2-integral-figuras")
% (find-pdf-page   "~/LATEX/2021-1-C2-integral-figuras.pdf")
% (find-sh0 "cp -v  ~/LATEX/2021-1-C2-integral-figuras.pdf /tmp/")
% (find-sh0 "cp -v  ~/LATEX/2021-1-C2-integral-figuras.pdf /tmp/pen/")
%     (find-xournalpp "/tmp/2021-1-C2-integral-figuras.pdf")
%   file:///home/edrx/LATEX/2021-1-C2-integral-figuras.pdf
%               file:///tmp/2021-1-C2-integral-figuras.pdf
%           file:///tmp/pen/2021-1-C2-integral-figuras.pdf
% http://angg.twu.net/LATEX/2021-1-C2-integral-figuras.pdf
% (find-LATEX "2019.mk")
% (find-CN-aula-links "2021-1-C2-integral-figuras" "2" "c2m211figs" "c2fi")
%
% Video (not yet):
% (find-ssr-links "c2m211figs" "2021-1-C2-integral-figuras" "{naoexiste}")
% (code-video     "c2m211figsvideo" "$S/http/angg.twu.net/eev-videos/2021-1-C2-integral-figuras.mp4")
% (find-c2m211figsvideo "0:00")

% «.title»	(to "title")
% «.defs»	(to "defs")
% «.defs-int»	(to "defs-int")
%
% «.all-in-one»	(to "all-in-one")
% «.array»	(to "array")
%
% «.djvuize»	(to "djvuize")

\documentclass[oneside,12pt]{article}
\usepackage[colorlinks,citecolor=DarkRed,urlcolor=DarkRed]{hyperref} % (find-es "tex" "hyperref")
\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{pict2e}
\usepackage[x11names,svgnames]{xcolor} % (find-es "tex" "xcolor")
\usepackage{colorweb}                  % (find-es "tex" "colorweb")
%\usepackage{tikz}
%
% (find-dn6 "preamble6.lua" "preamble0")
%\usepackage{proof}   % For derivation trees ("%:" lines)
%\input diagxy        % For 2D diagrams ("%D" lines)
%\xyoption{curve}     % For the ".curve=" feature in 2D diagrams
%
\usepackage{edrx21}               % (find-LATEX "edrx21.sty")
\input edrxaccents.tex            % (find-LATEX "edrxaccents.tex")
\input edrxchars.tex              % (find-LATEX "edrxchars.tex")
\input edrxheadfoot.tex           % (find-LATEX "edrxheadfoot.tex")
\input edrxgac2.tex               % (find-LATEX "edrxgac2.tex")
%
%\usepackage[backend=biber,
%   style=alphabetic]{biblatex}            % (find-es "tex" "biber")
%\addbibresource{catsem-slides.bib}        % (find-LATEX "catsem-slides.bib")
%
% (find-es "tex" "geometry")
\usepackage[a6paper, landscape,
            top=1.5cm, bottom=.25cm, left=1cm, right=1cm, includefoot
           ]{geometry}
%
\begin{document}

\catcode`\^^J=10
\directlua{dofile "dednat6load.lua"}  % (find-LATEX "dednat6load.lua")

%L dofile "edrxtikz.lua"  -- (find-LATEX "edrxtikz.lua")
%L dofile "edrxpict.lua"  -- (find-LATEX "edrxpict.lua")
\pu

% «defs»  (to ".defs")
% (find-LATEX "edrx15.sty" "colors-2019")
%\long\def\ColorRed   #1{{\color{Red1}#1}}
%\long\def\ColorViolet#1{{\color{MagentaVioletLight}#1}}
%\long\def\ColorViolet#1{{\color{Violet!50!black}#1}}
%\long\def\ColorGreen #1{{\color{SpringDarkHard}#1}}
%\long\def\ColorGreen #1{{\color{SpringGreenDark}#1}}
%\long\def\ColorGreen #1{{\color{SpringGreen4}#1}}
%\long\def\ColorGray  #1{{\color{GrayLight}#1}}
%\long\def\ColorGray  #1{{\color{black!30!white}#1}}
%\long\def\ColorBrown #1{{\color{Brown}#1}}
%\long\def\ColorBrown #1{{\color{brown}#1}}
%\long\def\ColorOrange#1{{\color{orange}#1}}
%
%\long\def\ColorShort #1{{\color{SpringGreen4}#1}}
%\long\def\ColorLong  #1{{\color{Red1}#1}}
%
%\def\frown{\ensuremath{{=}{(}}}
%\def\True {\mathbf{V}}
%\def\False{\mathbf{F}}
%\def\D    {\displaystyle}

\def\drafturl{http://angg.twu.net/LATEX/2021-1-C2.pdf}
\def\drafturl{http://angg.twu.net/2021.1-C2.html}
\def\draftfooter{\tiny \href{\drafturl}{\jobname{}} \ColorBrown{\shorttoday{} \hours}}



%  _____ _ _   _                               
% |_   _(_) |_| | ___   _ __   __ _  __ _  ___ 
%   | | | | __| |/ _ \ | '_ \ / _` |/ _` |/ _ \
%   | | | | |_| |  __/ | |_) | (_| | (_| |  __/
%   |_| |_|\__|_|\___| | .__/ \__,_|\__, |\___|
%                      |_|          |___/      
%
% «title»  (to ".title")
% (c2m211figsp 1 "title")
% (c2m211figsa   "title")

\thispagestyle{empty}

\begin{center}

\vspace*{1.2cm}

{\bf \Large Cálculo 2 - 2021.1}

\bsk

Aula 12: Algumas figuras

\ColorRed{(Elas foram transferidas pro Somas 2!)}

\bsk

Eduardo Ochs - RCN/PURO/UFF

\url{http://angg.twu.net/2021.1-C2.html}

\end{center}

\newpage


% (c2m211somas2p 8 "imagens-de-intervalos")
% (c2m211somas2a   "imagens-de-intervalos")
% (c2m211somas2p 37 "exemplao")
% (c2m211somas2a    "exemplao")


% «defs-int»  (to ".defs-int")
% (c2m211figsa    "defs-int")

% (find-LATEX "2021-1-C2-critical-points.lua" "Approxer-tests")
%L dofile     "2021-1-C2-critical-points.lua"
%L appr = Approxer {
%L     f      = f_do_slide_8,
%L     allcps = {3,8},
%L     a      = 2,
%L     b      = 10,
%L     N      = 4,
%L     method = "supin",
%L     what   = "ac",
%L   }
\pu

\long\def\ColorUpperA#1{{\color{red!20!white}#1}}
\long\def\ColorUpperB#1{{\color{Gold1!20!white}#1}}
\long\def\ColorUpperC#1{{\color{Green1!20!white}#1}}
\long\def\ColorUpperD#1{{\color{Blue1!20!white}#1}}
\long\def\ColorLowerA#1{{\color{red!80!white}#1}}
\long\def\ColorLowerB#1{{\color{Gold1!80!white}#1}}
\long\def\ColorLowerC#1{{\color{Green1!80!white}#1}}
\long\def\ColorLowerD#1{{\color{Blue1!80!white}#1}}
\long\def\ColorRealInt#1{{\color{Purple0!90!white}#1}}

\def\fwithapprs#1{%
  \vcenter{\hbox{%
    \beginpicture(0,0)(11,7)
    \pictgrid%
    #1%
    \pictpiecewise{(0,3)--(3,6)--(8,1)--(11,4)}%
    \pictaxes%
    \end{picture}%
  }}}

\def\UpperA{\ColorUpperA{\expr{appr:pict(2,  "supin", "c")}}}
\def\UpperB{\ColorUpperB{\expr{appr:pict(4,  "supin", "c")}}}
\def\UpperC{\ColorUpperC{\expr{appr:pict(8,  "supin", "c")}}}
\def\UpperD{\ColorUpperD{\expr{appr:pict(16, "supin", "c")}}}
\def\LowerD{\ColorLowerD{\expr{appr:pict(16, "infin", "c")}}}
\def\LowerC{\ColorLowerC{\expr{appr:pict(8,  "infin", "c")}}}
\def\LowerB{\ColorLowerB{\expr{appr:pict(4,  "infin", "c")}}}
\def\LowerA{\ColorLowerA{\expr{appr:pict(2,  "infin", "c")}}}

\def\fUpperA{\fwithapprs{\UpperA}}
\def\fUpperB{\fwithapprs{\UpperB}}
\def\fUpperC{\fwithapprs{\UpperC}}
\def\fUpperD{\fwithapprs{\UpperD}}
\def\fLowerA{\fwithapprs{\LowerA}}
\def\fLowerB{\fwithapprs{\LowerB}}
\def\fLowerC{\fwithapprs{\LowerC}}
\def\fLowerD{\fwithapprs{\LowerD}}
\def\fUpperLowerA{\fwithapprs{\UpperA\LowerA}}
\def\fUpperLowerB{\fwithapprs{\UpperB\LowerB}}
\def\fUpperLowerC{\fwithapprs{\UpperC\LowerC}}
\def\fUpperLowerD{\fwithapprs{\UpperD\LowerD}}
\def\fUpperLowerABCD{\fwithapprs{%
    \UpperA%
    \UpperB%
    \UpperC%
    \UpperD%
    \LowerD%
    \LowerC%
    \LowerB%
    \LowerA%
  }}
\def\fRealInt{\fwithapprs{\ColorRealInt{%
  \polygon*(2,0)(2,5)(3,6)(8,1)(10,3)(10,0)%
  }}}

\newpage

% «all-in-one»  (to ".all-in-one")
% (c2fip 2 "all-in-one")
% (c2fia   "all-in-one")

\unitlength=6.5pt

$\fUpperLowerA
  \quad
  \fUpperLowerB
  \quad
  \fUpperLowerC
  \quad
  \fUpperLowerD
$

\bsk

\unitlength=20pt

$\fUpperLowerABCD
$

\newpage

% «array»  (to ".array")
% (c2fip 3 "array")
% (c2fia   "array")

\unitlength=5pt

$\begin{array}{ccccccccc}
 \fUpperA &≥& \fUpperB &≥& \fUpperC &≥& \ldots \\
                                 &&&&&& \rotl{≤} \\
                                 &&&&&& \fRealInt \\
                                 &&&&&& \rotl{≤} \\
 \fLowerA &≤& \fLowerB &≤& \fLowerC &≤& \ldots \\
 \end{array}
$



%\printbibliography

\GenericWarning{Success:}{Success!!!}  % Used by `M-x cv'

\end{document}

%  ____  _             _         
% |  _ \(_)_   ___   _(_)_______ 
% | | | | \ \ / / | | | |_  / _ \
% | |_| | |\ V /| |_| | |/ /  __/
% |____// | \_/  \__,_|_/___\___|
%     |__/                       
%
% «djvuize»  (to ".djvuize")
% (find-LATEXgrep "grep --color -nH --null -e djvuize 2020-1*.tex")

* (eepitch-shell)
* (eepitch-kill)
* (eepitch-shell)
# (find-fline "~/2021.1-C2/")
# (find-fline "~/LATEX/2021-1-C2/")
# (find-fline "~/bin/djvuize")

cd /tmp/
for i in *.jpg; do echo f $(basename $i .jpg); done

f () { rm -fv $1.png $1.pdf; djvuize $1.pdf }
f () { rm -fv $1.png $1.pdf; djvuize WHITEBOARDOPTS="-m 1.0" $1.pdf; xpdf $1.pdf }
f () { rm -fv $1.png $1.pdf; djvuize WHITEBOARDOPTS="-m 0.5" $1.pdf; xpdf $1.pdf }
f () { rm -fv $1.png $1.pdf; djvuize WHITEBOARDOPTS="-m 0.25" $1.pdf; xpdf $1.pdf }
f () { cp -fv $1.png $1.pdf       ~/2021.1-C2/
       cp -fv        $1.pdf ~/LATEX/2021-1-C2/
       cat <<%%%
% (find-latexscan-links "C2" "$1")
%%%
}

f 20201213_area_em_funcao_de_theta
f 20201213_area_em_funcao_de_x
f 20201213_area_fatias_pizza



%  __  __       _        
% |  \/  | __ _| | _____ 
% | |\/| |/ _` | |/ / _ \
% | |  | | (_| |   <  __/
% |_|  |_|\__,_|_|\_\___|
%                        
% <make>

* (eepitch-shell)
* (eepitch-kill)
* (eepitch-shell)
# (find-LATEXfile "2019planar-has-1.mk")
make -f 2019.mk STEM=2021-1-C2-integral-figuras veryclean
make -f 2019.mk STEM=2021-1-C2-integral-figuras pdf

% Local Variables:
% coding: utf-8-unix
% ee-tla: "c2fi"
% ee-tla: "c2m211figs"
% End: