@charset "UTF-8";.data-title,p.altsol::before,p.appl::before,p.case::before,p.caution::before,p.conjecture::before,p.corollary::before,p.def::before,p.der::before,p.example::before,p.exercise::before,p.formula::before,p.genexample::before,p.gensol::before,p.hint::before,p.just::before,p.lemma::before,p.meth::before,p.predef::before,p.proc::before,p.proof::before,p.prop::before,p.prt::before,p.remark::before,p.sol::before,p.step::before,p.sum::before,p.thm::before,p.tutorial-ref::before{font-size:16pt;display:inline-block;margin-right:1em;font-weight:700}p.appl,p.conjecture,p.corollary,p.def,p.formula,p.lemma,p.predef,p.prop,p.sum,p.thm{background-color:#f0f0f0;margin-left:65px;margin-right:65px;padding:.25em}[class*=bullet],[class*=has]{background-color:transparent;border:none;cursor:pointer;height:35px;width:35px;background-size:100%}ol.slist>li,ol.xlist .heading,p.scontents-xpara{background-color:#c4e1f5}ol.slist>li h3,ol.xlist .heading h3,p.scontents-xpara h3{display:inline-block;margin:0}ol.slist>li .pgs,ol.slist>li h3,ol.xlist .heading .pgs,ol.xlist .heading h3,p.scontents-xpara .pgs,p.scontents-xpara h3{white-space:nowrap;font-weight:700}ol.slist>li a,ol.xlist .heading a,p.scontents-xpara a{text-decoration:none}ol.slist>li a:hover,ol.xlist .heading a:hover,p.scontents-xpara a:hover{text-decoration:underline}ol.slist>li a:link,ol.slist>li a:visited,ol.xlist .heading a:link,ol.xlist .heading a:visited,p.scontents-xpara a:link,p.scontents-xpara a:visited{color:#00c}#mySidenav{overflow-y:scroll}#mySidenav .active{background-color:#000}#mySidenav button{cursor:pointer;font-size:12pt;margin:auto 0;background-color:#888;color:#fff;border:none;text-align:center;padding:5px}#mySidenav #toggleC2{border-top-left-radius:5px;border-bottom-left-radius:5px}#mySidenav #toggleC3{border-top-right-radius:5px;border-bottom-right-radius:5px}#mySidenav #Calc2{display:block}#mySidenav #Calc3{display:none}*{box-sizing:border-box}body{flex-direction:column;margin:0;padding:0;font-family:Arial,sans-serif;font-size:14pt;overflow-x:hidden}h1{width:100%;padding:.25em;margin:35px auto 0 auto;background-color:#00c;color:#fff;text-align:center;font-weight:700;font-size:36pt}h1.hw{margin:0 auto 0 auto;color:#000;background-color:#fff;font-size:24pt}h2{padding:4px;margin:.25em 30px;background-color:#007fff;color:#fff;text-indent:5px;font-size:24pt;font-weight:700}h2.hw{width:100%;margin:0 auto 0 auto;color:#000;background-color:#fff;text-align:center;font-size:20pt}h3{margin:0 30px;color:#00c;font-size:18pt;font-weight:700}h3.hw{margin:0 30px;color:#000;background-color:#fff;font-size:16pt;font-weight:700}h4{margin:.25em 30px}figcaption{text-align:center}p{margin:1em 30px}p.appl::before{content:"Application " attr(data-number) "	";color:#00c}p.case::before{content:"Case " attr(data-number) "	";color:#007fff}p.caution::before{content:"Caution: " attr(data-number) "	";font-size:24pt;font-weight:700;clear:left;color:red}p.conjecture::before{content:"Conjecture " attr(data-number) "	";color:#00c}p.corollary::before{content:"Corollary " attr(data-number) "	";color:#000}p.def::before{content:"Definition " attr(data-number) "	";color:#00c}p.der::before{content:"Derivation " attr(data-number) "	";color:#00c;margin-right:1em;font-size:16pt;font-weight:700}p.example::before{content:"Example " attr(data-number) "	";color:#007fff}p.exercise::before{content:"Exercise " attr(data-number) "	";color:green}p.exercise{padding-bottom:2px}p.formula::before{content:"Formula " attr(data-number) "	";color:#00c;margin-right:1em;font-size:16pt;font-weight:700}p.genexample::before{content:"Generic Example " attr(data-number) "	";color:#00c}p.gensol::before{content:"Generic Solution " attr(data-number) "	";font-size:16pt;font-weight:700;color:#007fff}p.hint::before{content:"Hint " attr(data-number) "	";color:indigo}p.just::before{content:"Justification " attr(data-number) "	";color:purple}p.maplet::before{content:url(../graphics/m4c.png)}p.maplet-ref::after{text-align:center;justify-content:center;display:flex}p.meth::before{content:"Method " attr(data-number) "	";color:#007fff}p.prt::before{content:"Part " attr(data-number) "	";color:#007fff}p.predef::before{content:"Preliminary Definition " attr(data-number) "	";color:#00c}p.proc::before{content:"Procedure " attr(data-number) "	";color:#000}p.proof::before{content:"Proof " attr(data-number) "	";color:purple}p.lemma::before{content:"Lemma " attr(data-number) "	";color:maroon}p.prop::before{content:"Proposition " attr(data-number) "	";color:#00c}p.remark::before{content:"Remark " attr(data-number) "	";color:#000}p.scontents-xpara{font-size:16pt;font-weight:700;margin:auto 30px;padding:15px 12px;clear:left}p.sol::before{content:"Solution " attr(data-number) "	";color:#007fff}p.sum::before{content:"Summary " attr(data-number) "	";color:#00c}p.step::before{content:"Step " attr(data-number) "	";color:#007fff}p.thm::before{content:"Theorem " attr(data-number) "	";margin-right:1em;color:#090;font-size:16pt;font-weight:700}p.tutorial-ref::before{content:url(../graphics/mymafavicon.png)}.collapse{border:solid #000 2px;margin:20px;padding:10px;position:relative;-webkit-transition:max-height .3s ease-in-out;-moz-transition:max-height .3s ease-in-out;-o-transition:max-height .3s ease-in-out;transition:max-height .3s ease-in-out;max-height:2000px;overflow:hidden}.collapse p{margin:14px;margin-top:8px}.collapse:before{content:"▲ ";font-size:13px;color:#000;float:left;margin-left:5px}.collapse.hide:before{content:"▼ "}.collapse.hide{max-height:45px}.collapse h4{display:inline;margin:0;margin-right:1em;font-size:16pt;font-weight:700;padding-left:5px}.collapse.sol h4{color:#007fff}.collapse.incsol h4{color:#f33}.collapse.altsol h4{color:#007fff}.collapse.example h4{color:#007fff}.collapse.altsol{border:2px #007fff solid}.collapse.meth h4{color:#007fff}.collapse.meth{border:2px #007fff solid}.collapse:hover{cursor:pointer}.collapse.showntransition{max-height:45px}.collapse.showntransition:before{content:"▼ "}.collapse.hiddentransition{max-height:4000px}.collapse.hiddentransition:before{content:"▲ "}.greybox{background-color:#f0f0f0;padding:5px}.greybox li{margin-top:.25em}div.greybox{margin:0 65px;padding:0}div.greybox *{margin:0}.hl{color:#00f;font-style:normal}.hl-seq{color:#00f;background-color:#ff0;font-size:24px;font-style:normal}.incorrect-bg{background-color:#f33}.correct-bg{background-color:#0f0}.shown-bg{background-color:#ff0}.warning-bg{background-color:orange}.example-links .active{background-color:#ff0}.check{margin:20px;padding:10px;background-color:#d4f3d1}li.check{margin:-10px;padding:10px;background-color:#d4f3d1}.greenbig{font-size:1.5em;color:green}.redbig{font-size:1.5em;color:#a00}.defword{font-weight:700;color:green}.data-title{color:#00c}.title{color:#00f}.MathJax_CHTML{font-size:1em!important;color:#c00000!important}.katex{font-size:1em!important;color:#c00000!important}.tutorial{border:1px solid red}.tutorial input,.tutorial textarea{font-size:14pt;font-family:Arial,Sans-Serif}.tutorial [class^=btn]{height:40px;line-height:1;font-family:Arial,Sans-Serif}.tutorial .tutorial-input,.tutorial .tutorial-message{border:2px solid #000;height:60px;padding:20px 5px}.tutorial .tutorial-input input,.tutorial .tutorial-input textarea,.tutorial .tutorial-message input,.tutorial .tutorial-message textarea{border:none;width:100%;height:20px;resize:none;padding:0}.tutorial .tutorial-display{height:60px;border:1px solid grey}.tutorial .tutorial-display .mjx-mfrac{position:relative;bottom:7px}.tutorial .tutorial-feedback{border:1px solid #f0f0f0;line-height:1;font-weight:700;overflow-y:hidden;width:100px;height:40px;text-align:center;padding:8px;resize:none;vertical-align:bottom}.tutorial .tutorial-message{margin-bottom:10px}.nostyle{list-style:none}.slider-vertical{-webkit-appearance:slider-vertical;writing-mode:bt-lr}.no-border{border:none!important}ol{margin:0 30px;list-style-position:inside}ol h2{margin-left:-1.5em}ol li{margin:.5em 0}ol ol{list-style-type:lower-latin}ol ol li{margin:.25em}ol ol.hw li{margin:.25em}ol.mlist{list-style-position:outside;font-size:16pt;margin-right:0}ol.mlist h2 span.toggle{position:relative;top:-3px}ol.mlist a{text-decoration:none}ol.mlist a:hover{text-decoration:underline}ol.mlist li{margin-left:-5px}ol.mlist li span.toggle{position:relative;top:0}ol.mlist ol{list-style-position:outside;margin-left:-8px}ol.mlist ol a{color:#000}ol.mlist ol a:hover{color:#00f}ol.mlist ol li{font-size:14pt}ol.mlist ol li a:not(:first-child){color:grey}ol.mlist ol li a:not(:first-child):hover{color:#00f}ol.slist{list-style-type:lower-alpha;list-style-position:inside;font-weight:700;margin-left:30px;padding-left:0}ol.slist>li{margin:auto;padding:15px 12px;clear:left}ol.slist>li:nth-child(even){background-color:#e5f2fb}ol.slist>li h3{padding-left:5px}ol.slist>li .pgs,ol.slist>li h3{font-size:16pt}ol.slist>ol{list-style-type:lower-roman;list-style-position:outside;float:left!important}ol.slist>ol li:first-child{margin-top:15px}ol.xlist{list-style-position:outside}ol.xlist li{margin:30px auto}ol.xlist li>.column{margin:0}ol.xlist ol{list-style-position:outside;margin-right:-5px;list-style:lower-alpha}ol.xlist ol ol{list-style-type:decimal}ol.xlist ol,ol.xlist ul{margin:0;padding-left:1em}ol.xlist p{margin:0}ol.xlist .toBeToggled p{margin:.5em 30px}ol.xlist .toBeToggled div.column>*{margin:0}ol.xlist .heading{padding:5px;margin:20px 0 20px -40px}ol.xlist .heading .pgs,ol.xlist .heading h3{font-size:18pt}.list-outside{list-style-position:outside}.dotfillex{border-bottom:1px solid rgba(0,0,0,.2);padding-bottom:.2rem;margin:25px 30px;position:relative}ol.xlist .dotfillex{margin:0}.list-outside .dotfillex{margin-left:0}.dotfillex>*{margin:0}.dotfillex>.column{margin:0}.dotfillex>:last-child{position:absolute;bottom:-17.5px;right:0;display:flex;justify-content:flex-end;align-items:center;margin-bottom:-17.5px;margin:0}.dotfillex>:last-child>button,.dotfillex>:last-child>input[type=text]{margin:auto 4px}.dotfillex>:last-child input[type=radio]{min-height:1rem;margin-bottom:.125rem}.dotfillex>:last-child>label{background:#fff;padding:3px}.dotfillex>:last-child>button:last-child{margin-right:-1px}[class*=drop]{display:none}.toBeToggled.drop-proof{border:2px solid #000}.toBeToggled.drop-proof h4{color:#000}.has-hint{background-image:url(../graphics/hint.jpg)}.toBeToggled.drop-hint{border:2px solid indigo}.toBeToggled.drop-hint h4{color:indigo;font-size:16}.has-ans{background-image:url(../graphics/ans.jpg)}.toBeToggled.drop-ans{border:2px solid #00f}.toBeToggled.drop-ans h4{color:#00f;font-size:16}.has-sol{background-image:url(../graphics/sol.jpg)}.toBeToggled.drop-sol{border:2px solid green}.toBeToggled.drop-sol h4{color:green;font-size:16}.has-check{background-image:url(../graphics/check.jpg)}.toBeToggled.drop-check{border:2px solid green}.toBeToggled.drop-check h4{color:green;font-size:16}.has-rem{background-image:url(../graphics/rem.jpg)}.toBeToggled.drop-rem{border:2px solid orange}.toBeToggled.drop-rem h4{color:orange;font-size:16}.has-proof{background-image:url(../graphics/proof.jpg)}.toBeToggled.drop-proof{border:2px solid green}.toBeToggled.drop-proof h4{color:green;font-size:16}.has-refresh{background-image:url(../graphics/refresh.jpg)}.toBeToggled.drop-refresh{border:2px solid #00f}.toBeToggled.drop-refresh h4{color:#00f;font-size:16}.has-show{background-image:url(../graphics/show.jpg)}.toBeToggled.drop-show{border:2px solid #00f}.toBeToggled.drop-show h4{color:#00f;font-size:16}.has-check-tut{background-image:url(../graphics/check-tut.jpg)}.toBeToggled.drop-check-tut{border:2px solid green}.toBeToggled.drop-check-tut h4{color:green;font-size:16}.has-true{background-image:url(../graphics/true.jpg)}.toBeToggled.drop-true{border:2px solid green}.toBeToggled.drop-true h4{color:green;font-size:16}.has-false{background-image:url(../graphics/false.jpg)}.toBeToggled.drop-false{border:2px solid red}.toBeToggled.drop-false h4{color:red;font-size:16}.has-yes{background-image:url(../graphics/yes.jpg)}.toBeToggled.drop-yes{border:2px solid green}.toBeToggled.drop-yes h4{color:green;font-size:16}.has-no{background-image:url(../graphics/no.jpg)}.toBeToggled.drop-no{border:2px solid red}.toBeToggled.drop-no h4{color:red;font-size:16}.toBeToggled.drop-check{background-color:#d4f3d1}.has-choice1{background-image:url(../graphics/bullet1.jpg)}.has-choice2{background-image:url(../graphics/bullet2.jpg)}.has-choice3{background-image:url(../graphics/bullet3.jpg)}.has-choice4{background-image:url(../graphics/bullet4.jpg)}.has-choice5{background-image:url(../graphics/bullet5.jpg)}.has-choice6{background-image:url(../graphics/bullet6.jpg)}.has-choice7{background-image:url(../graphics/bullet7.jpg)}.has-choice8{background-image:url(../graphics/bullet8.jpg)}.has-choice9{background-image:url(../graphics/bullet9.jpg)}.has-choiceA{background-image:url(../graphics/bulleta.jpg)}.has-choiceB{background-image:url(../graphics/bulletb.jpg)}.has-choiceC{background-image:url(../graphics/bulletc.jpg)}.has-choiceD{background-image:url(../graphics/bulletd.jpg)}.has-choiceE{background-image:url(../graphics/bullete.jpg)}.has-choiceF{background-image:url(../graphics/bulletf.jpg)}.has-choiceG{background-image:url(../graphics/bulletg.jpg)}.has-choiceH{background-image:url(../graphics/bulleth.jpg)}.has-choiceI{background-image:url(../graphics/bulleti.jpg)}.has-choiceJ{background-image:url(../graphics/bulletj.jpg)}.has-clockwise{background-image:url(../graphics/clockwise.jpg);cursor:pointer}.has-counterclockwise{background-image:url(../graphics/counterclockwise.jpg);cursor:pointer}.bullet-black{background-image:url(../graphics/bulletblack.jpg)}.bullet-blue{background-image:url(../graphics/bulletblue.jpg)}.bullet-cyan{background-image:url(../graphics/bulletcyan.jpg)}.bullet-green{background-image:url(../graphics/bulletgreen.jpg)}.bullet-magenta{background-image:url(../graphics/bulletmagenta.jpg)}.bullet-orange{background-image:url(../graphics/bulletorange.jpg)}.bullet-red{background-image:url(../graphics/bulletred.jpg)}.bullet-yellow{background-image:url(../graphics/bulletyellow.jpg)}.bullet-1{background-image:url(../graphics/bullet1.jpg)}.bullet-2{background-image:url(../graphics/bullet2.jpg)}.bullet-3{background-image:url(../graphics/bullet3.jpg)}.bullet-4{background-image:url(../graphics/bullet4.jpg)}.bullet-5{background-image:url(../graphics/bullet5.jpg)}.bullet-6{background-image:url(../graphics/bullet6.jpg)}.bullet-7{background-image:url(../graphics/bullet7.jpg)}.bullet-8{background-image:url(../graphics/bullet8.jpg)}.bullet-9{background-image:url(../graphics/bullet9.jpg)}.bullet-a{background-image:url(../graphics/bulleta.jpg)}.bullet-b{background-image:url(../graphics/bulletb.jpg)}.bullet-c{background-image:url(../graphics/bulletc.jpg)}.bullet-d{background-image:url(../graphics/bulletd.jpg)}.bullet-e{background-image:url(../graphics/bullete.jpg)}.bullet-f{background-image:url(../graphics/bulletf.jpg)}.bullet-g{background-image:url(../graphics/bulletg.jpg)}.bullet-h{background-image:url(../graphics/bulleth.jpg)}.bullet-i{background-image:url(../graphics/bulleti.jpg)}.bullet-j{background-image:url(../graphics/bulletj.jpg)}.bullet-bbbN{background-image:url(../graphics/bulletbbbN.jpg)}.bullet-bbbZ{background-image:url(../graphics/bulletbbbZ.jpg)}.bullet-bbbQ{background-image:url(../graphics/bulletbbbQ.jpg)}.bullet-bbbR{background-image:url(../graphics/bulletbbbR.jpg)}.bullet-bbbC{background-image:url(../graphics/bulletbbbC.jpg)}.filledBullet,.tridown,.triside,.triup{position:relative;top:-3px}.filledBullet::before,.tridown::before,.triside::before,.triup::before{font-size:12pt}.triside::before{content:"▼ "}.filledBullet::before{font-size:32px;content:"  "}.tridown::before{content:"▲ "}.triup{position:absolute;left:7px;top:10px}.triup::before{content:"▲ "}.sol-box{border:1px solid #000;padding:2px}.sol-box::after{content:"Solution";font-size:16pt;font-weight:700;color:#007fff}.altsol::before{content:"Alternate Solution";margin-right:1em;font-size:16pt;font-weight:700;color:#007fff}.altsol-box{border:2px solid #000;padding:2px}.altsol-box::after{content:"Alternate Solution";font-size:16pt;font-weight:700;color:#007fff}.sol-incorrect::before{content:"Incorrect Solution";margin-right:1em;font-size:16pt;font-weight:700;color:#f33}.sol-incorrect-box{border:1px solid #000;padding:2px}.sol-incorrect-box::after{content:"Incorrect Solution";font-size:16pt;font-weight:700;color:#f33}.toggle{cursor:pointer}div.toBeToggled{border:1px solid #000}.toBeToggled{margin:1em;display:none;position:relative}.toBeToggled p{margin-top:.5em}.toBeToggled.note{border:1px solid #000}.toBeToggled.shown{display:block;position:relative}.hidden{display:none}.inline{display:inline}.center{display:flex;flex-wrap:wrap;align-items:center;text-align:center;justify-content:center;margin:0 auto}.align-right{display:flex;flex-wrap:wrap;align-items:right;text-align:right;justify-content:right;margin:0 auto}.align-left{display:flex;flex-wrap:wrap;align-items:left;text-align:left;justify-content:left;margin:0 auto}.example-links{margin:auto;width:800px;text-align:center}.example-links ul li{display:inline-block;margin:10px}ul li{margin-top:none;margin-bottom:none;list-style-position:inside}table{margin:30px;border-collapse:collapse}table caption{font-size:1.5em;margin-bottom:1em;white-space:nowrap}table td,table th{padding:.5em;text-align:center}table.center{display:table!important}table.outside-border{border:2px solid #000}table.cell-border td,table.cell-border th{border:1px solid #000}table.cell-border-light td,table.cell-border-light th{border:1px solid #f0f0f0}table.left-align td{text-align:left}table.horizontal-table tr td:first-child{border-right:2px solid #000}table.horizontal-table tr{border-bottom:2px solid #000}table.horizontal-table tr:last-child{border-bottom:none}table.lined-rows tr{border-top:1px solid #f0f0f0;border-bottom:1px solid #f0f0f0}table.lined-rows tr td:first-child{font-weight:700}table.lined-rows tr:nth-child(even){background-color:#e5f2fb}table.lined-rows tr:nth-child(odd){background-color:#fff}table thead.thead th{font-weight:700;background-color:#fff}table.mcex{margin:2em auto}table.mcex td{text-align:left;vertical-align:middle}table.mcex td button{vertical-align:middle}table.mcex td a{cursor:pointer}a{text-decoration:underline}a:link{color:green}a:visited{color:purple}a:hover{color:#00f}a:active{color:pink}div#pg-wrapper{max-width:1200px;margin:auto}div.rule{height:5px;width:80%;background-color:#00c;margin:1em auto;clear:both}div.center figure{margin:.25em}div.column{margin:0 30px;display:flex;flex-wrap:wrap;align-items:center}div.column>*{width:50%;margin:0}div.column>* p{margin:1em 0}div.column>[data-col-width="1%"]{width:1%}div.column>[data-col-width="2%"]{width:2%}div.column>[data-col-width="3%"]{width:3%}div.column>[data-col-width="4%"]{width:4%}div.column>[data-col-width="5%"]{width:5%}div.column>[data-col-width="6%"]{width:6%}div.column>[data-col-width="7%"]{width:7%}div.column>[data-col-width="8%"]{width:8%}div.column>[data-col-width="9%"]{width:9%}div.column>[data-col-width="10%"]{width:10%}div.column>[data-col-width="11%"]{width:11%}div.column>[data-col-width="12%"]{width:12%}div.column>[data-col-width="13%"]{width:13%}div.column>[data-col-width="14%"]{width:14%}div.column>[data-col-width="15%"]{width:15%}div.column>[data-col-width="16%"]{width:16%}div.column>[data-col-width="17%"]{width:17%}div.column>[data-col-width="18%"]{width:18%}div.column>[data-col-width="19%"]{width:19%}div.column>[data-col-width="20%"]{width:20%}div.column>[data-col-width="21%"]{width:21%}div.column>[data-col-width="22%"]{width:22%}div.column>[data-col-width="23%"]{width:23%}div.column>[data-col-width="24%"]{width:24%}div.column>[data-col-width="25%"]{width:25%}div.column>[data-col-width="26%"]{width:26%}div.column>[data-col-width="27%"]{width:27%}div.column>[data-col-width="28%"]{width:28%}div.column>[data-col-width="29%"]{width:29%}div.column>[data-col-width="30%"]{width:30%}div.column>[data-col-width="31%"]{width:31%}div.column>[data-col-width="32%"]{width:32%}div.column>[data-col-width="33%"]{width:33%}div.column>[data-col-width="34%"]{width:34%}div.column>[data-col-width="35%"]{width:35%}div.column>[data-col-width="36%"]{width:36%}div.column>[data-col-width="37%"]{width:37%}div.column>[data-col-width="38%"]{width:38%}div.column>[data-col-width="39%"]{width:39%}div.column>[data-col-width="40%"]{width:40%}div.column>[data-col-width="41%"]{width:41%}div.column>[data-col-width="42%"]{width:42%}div.column>[data-col-width="43%"]{width:43%}div.column>[data-col-width="44%"]{width:44%}div.column>[data-col-width="45%"]{width:45%}div.column>[data-col-width="46%"]{width:46%}div.column>[data-col-width="47%"]{width:47%}div.column>[data-col-width="48%"]{width:48%}div.column>[data-col-width="49%"]{width:49%}div.column>[data-col-width="50%"]{width:50%}div.column>[data-col-width="51%"]{width:51%}div.column>[data-col-width="52%"]{width:52%}div.column>[data-col-width="53%"]{width:53%}div.column>[data-col-width="54%"]{width:54%}div.column>[data-col-width="55%"]{width:55%}div.column>[data-col-width="56%"]{width:56%}div.column>[data-col-width="57%"]{width:57%}div.column>[data-col-width="58%"]{width:58%}div.column>[data-col-width="59%"]{width:59%}div.column>[data-col-width="60%"]{width:60%}div.column>[data-col-width="61%"]{width:61%}div.column>[data-col-width="62%"]{width:62%}div.column>[data-col-width="63%"]{width:63%}div.column>[data-col-width="64%"]{width:64%}div.column>[data-col-width="65%"]{width:65%}div.column>[data-col-width="66%"]{width:66%}div.column>[data-col-width="67%"]{width:67%}div.column>[data-col-width="68%"]{width:68%}div.column>[data-col-width="69%"]{width:69%}div.column>[data-col-width="70%"]{width:70%}div.column>[data-col-width="71%"]{width:71%}div.column>[data-col-width="72%"]{width:72%}div.column>[data-col-width="73%"]{width:73%}div.column>[data-col-width="74%"]{width:74%}div.column>[data-col-width="75%"]{width:75%}div.column>[data-col-width="76%"]{width:76%}div.column>[data-col-width="77%"]{width:77%}div.column>[data-col-width="78%"]{width:78%}div.column>[data-col-width="79%"]{width:79%}div.column>[data-col-width="80%"]{width:80%}div.column>[data-col-width="81%"]{width:81%}div.column>[data-col-width="82%"]{width:82%}div.column>[data-col-width="83%"]{width:83%}div.column>[data-col-width="84%"]{width:84%}div.column>[data-col-width="85%"]{width:85%}div.column>[data-col-width="86%"]{width:86%}div.column>[data-col-width="87%"]{width:87%}div.column>[data-col-width="88%"]{width:88%}div.column>[data-col-width="89%"]{width:89%}div.column>[data-col-width="90%"]{width:90%}div.column>[data-col-width="91%"]{width:91%}div.column>[data-col-width="92%"]{width:92%}div.column>[data-col-width="93%"]{width:93%}div.column>[data-col-width="94%"]{width:94%}div.column>[data-col-width="95%"]{width:95%}div.column>[data-col-width="96%"]{width:96%}div.column>[data-col-width="97%"]{width:97%}div.column>[data-col-width="98%"]{width:98%}div.column>[data-col-width="99%"]{width:99%}div.column>[data-col-width="100%"]{width:100%}div.column figure,div.column img{max-width:100%;margin:auto!important;padding:0}div.pgs{float:right}div.pgs div{display:inline-block;padding:0 .25em}.figgroup figure{display:inline-block;margin:0}header{display:flex;align-items:center;position:fixed;top:0;z-index:1;background-color:#000;width:100%;height:35px}header button#open-nav{display:inline-block;position:relative;top:2px;left:35px;height:22px;width:22px;background:linear-gradient(to bottom,#fff 0,#fff 20%,transparent 20%,transparent 40%,#fff 40%,#fff 60%,transparent 60%,transparent 80%,#fff 80%,#fff 100%);cursor:pointer;margin-right:50px;border:none}header p.mma{display:inline-block;cursor:pointer;font-weight:700;margin:0}header p.mma a{color:#fff}header p.mma a:hover{text-decoration:none;color:#fff}header ul{display:inline-block;white-space:nowrap}header ul li{display:inline-block;border-right:2px solid #fff;padding-right:5px;padding-left:3px;text-align:center}header ul li:last-child{border-right:none!important}header ul a{color:#fff!important;text-decoration:none}header ul a:hover{color:#fff;text-decoration:underline}main.pushed{margin-left:350px}.sidenav-open{width:350px!important}.sidenav ol{list-style-position:outside}.sidenav{width:0;height:100%;position:fixed;z-index:1;top:0;left:0;background-color:#e5f2fb;overflow-x:hidden;overflow-y:hidden;padding-top:60px;margin-right:-5px;transition:.5s}.sidenav a.closebtn{position:absolute;top:15px;right:25px;font-size:30px;color:#818181;display:block;transition:.3s}.offcanvas .sidenav a.closebtn:focus,.sidenav a.closebtn:hover{color:#000}.sidenav nav{display:none;width:100%}.sidenav p.mma{font-size:24pt}.sidenav ol{margin:0 15px}.sidenav ol h2{font-size:20pt;margin-right:0}.sidenav ol h2 span.toggle{position:relative;top:-3px}.sidenav ol a{text-decoration:none}.sidenav ol a:hover{text-decoration:underline}.sidenav ol li{font-size:16pt;margin-left:0}.sidenav ol li span.toggle{position:relative;top:0}.sidenav ol ol{margin-left:-1em}.sidenav ol ol a{color:#000}.sidenav ol ol a:hover{color:#00f}.sidenav ol ol li{font-size:12pt}.sidenav ol ol ol{font-size:10pt}main{transition:margin-left .5s}span.nohint{width:45px;display:inline-block}button{cursor:pointer;font-size:12pt;background-color:#e7e7e7;color:#000;border:1px solid #000;text-align:center;padding:5px}.btn,.btn-check,.btn-hint,.btn-newproblem,.btn-primary,.btn-show{cursor:pointer;font-size:12pt;background-color:#e7e7e7;color:#000;border:1px solid #000;text-align:center;padding:5px}.btn-check,.btn-hint,.btn-newproblem,.btn-primary,.btn-show{font-size:14pt;border-radius:4px;padding:0 5px 0 5px;text-shadow:rgba(254,252,252,.5) 0 1px 0;vertical-align:bottom}.btn-newproblem{background-color:rgb(255,76.5,255);color:#000}.btn-hint{background-color:orange;color:#000}.btn-check{background-color:#c4e1f5;color:#000}.btn-show{background-color:#ff0;color:#000}.closebtn{text-decoration:none;cursor:pointer}.mlist .closebtn{display:none}.slist .closebtn{display:none}.mwrapper{max-width:1200px;margin:auto}.toBeToggled .closebtn{position:relative;float:right;bottom:30px;right:5px;font-size:24px;color:#818181}.toBeToggled .closebtn:hover{color:#000}div.center p.mma{font-size:28pt;margin:10px 0}p.mma a{text-decoration:none}p.mma span:first-child::before{content:"MY";color:red;font-weight:700;margin-right:0}p.mma span:nth-child(2)::before{content:"Math";color:#00f;font-weight:700;margin-right:0}p.mma span:nth-child(3)::before{content:"Apps";color:green;font-weight:700}footer{height:50px;width:100%;font-size:12pt}footer div.column p.mma a:hover,footer div.column p.mma a:link,footer div.column p.mma a:visited{color:#000}footer div.column div:last-child{display:inline-flex;justify-content:flex-end}footer div.column div:last-child p{margin:auto 10px}footer div.column div:last-child img{margin:auto 0!important}.modal{display:none;position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);max-width:100%;max-height:100%;margin:auto;background-color:#fff;border-radius:25px;text-align:center;font-size:24pt;z-index:2;opacity:1;overflow-y:auto}.modal a.closebtn{position:absolute;float:right;top:10px;right:35px}.modal a.closebtn:hover{color:#fff}.modal h2{border-radius:5px}.modal p{font-size:14pt}.modal-small{width:350px}.modal-medium{width:500px}.modal-large{width:750px}.modal-correct{box-shadow:0 0 5px 5px #0f0}.modal-correct h2{background-color:#0f0}.modal-incorrect{box-shadow:0 0 5px 5px #f33}.modal-incorrect h2{background-color:#f33}.modal-overlay{display:none;position:fixed;top:0;left:0;width:100%;height:100%;z-index:1;background-color:gray;opacity:.5}@media screen and (max-width:750px){header ul{display:none}.sidenav nav{margin:auto;display:flex;align-items:center;width:100%;height:35px}.sidenav nav ul{margin:auto;padding:0;display:inline-block;white-space:nowrap}.sidenav nav ul li{display:inline-block;padding-right:6px;padding-left:4px;border-right:2px solid #000;text-align:center}.sidenav nav ul li:last-child{border-right:none!important}.sidenav nav ul a{color:#000!important;text-decoration:none}.sidenav nav ul a:hover{color:#000;text-decoration:underline}.sidenav-open{width:100%!important}main{overflow:hidden}main.pushed{margin-left:100%}div.column>*{width:100%!important}div.column>* p{margin:auto!important}div.column,h2,h3,h4,ol,ol.slist,p,p.scontents-xpara{margin-left:0;margin-right:0}.toBeToggled{padding:10px}div#pg-wrapper{margin:auto 10px}.mwrapper{margin:auto 15px}footer p.mma{text-align:center}}#report-bug{cursor:pointer;background-color:#fff}#open-index-page{cursor:pointer}.header{width:100%}.nav{width:100%}.bug-footer .bug{float:left}.bug-footer .editor{float:right}