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Stack static improvements #2779

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0deec78
STACK: upgrade minimal example to latest version and official API
geoo89 Feb 13, 2026
d1c5737
STACK: support broader feature palette for static version
geoo89 Jan 29, 2026
6e529af
STACK: fix multi-line latex not rendering properly in HTML output
geoo89 Jan 29, 2026
e368cb6
STACK: add reference to online version for interactive questions in s…
geoo89 Feb 16, 2026
2fef0b4
sample-article: add a few STACK example questions
geoo89 Feb 13, 2026
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1 change: 0 additions & 1 deletion examples/sample-article/gen/stack/stack-integration.ptx
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@@ -1,5 +1,4 @@
<stack-static>

<statement><p>Find <me> \int {{\left(x-3\right)}^6} d{x}</me> <fillin characters="20" name="ans1"/> </p></statement>
<solution><p>We can either do this question by inspection (i.e. spot the answer) or in a more formal manner by using the substitution <me> u = ({x}-{3}).</me> Then, since <m>\frac{d}{d{x}}u=1</m> we have <me> \int {{\left(x-3\right)}^6} d{x} = \int u^{6} du = \frac{u^{7}}{7}+c = {\frac{{\left(x-3\right)}^7}{7}}+c.</me></p></solution>
<answer><p><m>\frac{{\left(x-3\right)}^7}{7}+c</m></p></answer>
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6 changes: 1 addition & 5 deletions examples/sample-article/media/stack/01_integration_with_feedback.xml
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@@ -1,9 +1,5 @@
<?xml version="1.0" encoding="UTF-8"?>
<!-- (2025-12-19) We want this question files to not require any -->
<!-- additional preparation, specifically this namespace declaration -->
<!-- should not be here. Removing it will lead to many errors, so we -->
<!-- are working on a better solution. -->
<quiz xmlns="http://stack-assessment.org/2025/moodle-question">
<quiz>
<!-- question: 17332 -->
<question type="stack">
<name>
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278 changes: 278 additions & 0 deletions examples/sample-article/media/stack/Adding-vectors-in-triangles.xml
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142 changes: 142 additions & 0 deletions examples/sample-article/media/stack/Checkbox.xml
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@@ -0,0 +1,142 @@
<?xml version="1.0" encoding="UTF-8"?>
<quiz>
<question type="stack">
<name>
<text>Checkbox</text>
</name>
<questiontext format="html">
<text><![CDATA[<p>Differentiate {@p@} with respect to \(x\).</p><p>[[input:ans1]]</p><div>[[validation:ans1]]</div>]]></text>
</questiontext>
<generalfeedback format="html">
<text/>
</generalfeedback>
<defaultgrade>1</defaultgrade>
<penalty>0.1</penalty>
<hidden>0</hidden>
<idnumber/>
<stackversion>
<text>2018080600</text>
</stackversion>
<questionvariables>
<text><![CDATA[/* Create a list of potential answers. */
p:sin(2*x);
ta:[[diff(p,x),true],[p,false],[int(p,x),false],[cos(2*x)+c,false]];
/* The actual correct answer. */
tac:diff(p,x)
/* Add in a "None of these" to the end of the list. The Maxima value is the atom null. */
tao:[null, false, "None of these"];
ta:append(ta,[tao]);]]></text>
</questionvariables>
<specificfeedback format="html">
<text>[[feedback:prt1]]</text>
</specificfeedback>
<questionnote format="html">
<text/>
</questionnote>
<questiondescription format="html">
<text/>
</questiondescription>
<questionsimplify>1</questionsimplify>
<assumepositive>0</assumepositive>
<assumereal>0</assumereal>
<prtcorrect format="html">
<text><![CDATA[<span style="font-size: 1.5em; color:green;"><i class="fa fa-check"></i></span> Correct answer, well done.]]></text>
</prtcorrect>
<prtpartiallycorrect format="html">
<text><![CDATA[<span style="font-size: 1.5em; color:orange;"><i class="fa fa-adjust"></i></span> Your answer is partially correct.]]></text>
</prtpartiallycorrect>
<prtincorrect format="html">
<text><![CDATA[<span style="font-size: 1.5em; color:red;"><i class="fa fa-times"></i></span> Incorrect answer.]]></text>
</prtincorrect>
<decimals>.</decimals>
<scientificnotation>*10</scientificnotation>
<multiplicationsign>dot</multiplicationsign>
<sqrtsign>1</sqrtsign>
<complexno>i</complexno>
<inversetrig>cos-1</inversetrig>
<logicsymbol>lang</logicsymbol>
<matrixparens>[</matrixparens>
<isbroken>0</isbroken>
<variantsselectionseed/>
<input>
<name>ans1</name>
<type>checkbox</type>
<tans>ta</tans>
<boxsize>15</boxsize>
<strictsyntax>1</strictsyntax>
<insertstars>0</insertstars>
<syntaxhint/>
<syntaxattribute>0</syntaxattribute>
<forbidwords/>
<allowwords/>
<forbidfloat>1</forbidfloat>
<requirelowestterms>0</requirelowestterms>
<checkanswertype>0</checkanswertype>
<mustverify>1</mustverify>
<showvalidation>2</showvalidation>
<options/>
</input>
<prt>
<name>prt1</name>
<value>1.0000000</value>
<autosimplify>1</autosimplify>
<feedbackstyle>1</feedbackstyle>
<feedbackvariables>
<text><![CDATA[ansmod:apply("and",maplist(lambda([ex],second(ATDiff(ex,diff(p,x),x))),ans1));]]></text>
</feedbackvariables>
<node>
<name>0</name>
<description/>
<answertest>AlgEquiv</answertest>
<sans>ansmod</sans>
<tans>true</tans>
<testoptions/>
<quiet>0</quiet>
<truescoremode>=</truescoremode>
<truescore>1.0000000</truescore>
<truepenalty/>
<truenextnode>-1</truenextnode>
<trueanswernote>prt1-1-T</trueanswernote>
<truefeedback format="html">
<text/>
</truefeedback>
<falsescoremode>=</falsescoremode>
<falsescore>0.0000000</falsescore>
<falsepenalty/>
<falsenextnode>-1</falsenextnode>
<falseanswernote>prt1-1-F</falseanswernote>
<falsefeedback format="html">
<text/>
</falsefeedback>
</node>
</prt>
<qtest>
<testcase>1</testcase>
<description/>
<testinput>
<name>ans1</name>
<value>[2*cos(2*x)]</value>
</testinput>
<expected>
<name>prt1</name>
<expectedscore>1.0000000</expectedscore>
<expectedpenalty>0.0000000</expectedpenalty>
<expectedanswernote>prt1-1-T</expectedanswernote>
</expected>
</qtest>
<qtest>
<testcase>2</testcase>
<description/>
<testinput>
<name>ans1</name>
<value>[first(ta[1]),first(ta[3])]</value>
</testinput>
<expected>
<name>prt1</name>
<expectedscore>0.0000000</expectedscore>
<expectedpenalty>0.1000000</expectedpenalty>
<expectedanswernote>prt1-1-F</expectedanswernote>
</expected>
</qtest>
</question>
</quiz>
135 changes: 135 additions & 0 deletions examples/sample-article/media/stack/Matrix.xml
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<?xml version="1.0" encoding="UTF-8"?>
<quiz>
<question type="stack">
<name>
<text>Matrix</text>
</name>
<questiontext format="html">
<text><![CDATA[<p>Type in {@M@}<br></p><p>[[input:ans1]]</p><div>[[validation:ans1]]</div>]]></text>
</questiontext>
<generalfeedback format="html">
<text/>
</generalfeedback>
<defaultgrade>1</defaultgrade>
<penalty>0.1</penalty>
<hidden>0</hidden>
<idnumber/>
<stackversion>
<text>2018080600</text>
</stackversion>
<questionvariables>
<text>M:matrix([1,2],[3,4])</text>
</questionvariables>
<specificfeedback format="html">
<text>[[feedback:prt1]]</text>
</specificfeedback>
<questionnote format="html">
<text/>
</questionnote>
<questiondescription format="html">
<text/>
</questiondescription>
<questionsimplify>1</questionsimplify>
<assumepositive>0</assumepositive>
<assumereal>0</assumereal>
<prtcorrect format="html">
<text><![CDATA[<span style="font-size: 1.5em; color:green;"><i class="fa fa-check"></i></span> Correct answer, well done.]]></text>
</prtcorrect>
<prtpartiallycorrect format="html">
<text><![CDATA[<span style="font-size: 1.5em; color:orange;"><i class="fa fa-adjust"></i></span> Your answer is partially correct.]]></text>
</prtpartiallycorrect>
<prtincorrect format="html">
<text><![CDATA[<span style="font-size: 1.5em; color:red;"><i class="fa fa-times"></i></span> Incorrect answer.]]></text>
</prtincorrect>
<decimals>.</decimals>
<scientificnotation>*10</scientificnotation>
<multiplicationsign>dot</multiplicationsign>
<sqrtsign>1</sqrtsign>
<complexno>i</complexno>
<inversetrig>cos-1</inversetrig>
<logicsymbol>lang</logicsymbol>
<matrixparens>[</matrixparens>
<isbroken>0</isbroken>
<variantsselectionseed/>
<input>
<name>ans1</name>
<type>matrix</type>
<tans>M</tans>
<boxsize>15</boxsize>
<strictsyntax>1</strictsyntax>
<insertstars>0</insertstars>
<syntaxhint/>
<syntaxattribute>0</syntaxattribute>
<forbidwords/>
<allowwords/>
<forbidfloat>1</forbidfloat>
<requirelowestterms>0</requirelowestterms>
<checkanswertype>1</checkanswertype>
<mustverify>1</mustverify>
<showvalidation>1</showvalidation>
<options/>
</input>
<prt>
<name>prt1</name>
<value>1.0000000</value>
<autosimplify>1</autosimplify>
<feedbackstyle>1</feedbackstyle>
<feedbackvariables>
<text/>
</feedbackvariables>
<node>
<name>0</name>
<description/>
<answertest>AlgEquiv</answertest>
<sans>ans1</sans>
<tans>M</tans>
<testoptions/>
<quiet>0</quiet>
<truescoremode>=</truescoremode>
<truescore>1.0000000</truescore>
<truepenalty/>
<truenextnode>-1</truenextnode>
<trueanswernote>prt1-1-T</trueanswernote>
<truefeedback format="html">
<text/>
</truefeedback>
<falsescoremode>=</falsescoremode>
<falsescore>0.0000000</falsescore>
<falsepenalty/>
<falsenextnode>-1</falsenextnode>
<falseanswernote>prt1-1-F</falseanswernote>
<falsefeedback format="html">
<text/>
</falsefeedback>
</node>
</prt>
<qtest>
<testcase>1</testcase>
<description/>
<testinput>
<name>ans1</name>
<value>M</value>
</testinput>
<expected>
<name>prt1</name>
<expectedscore>1.0000000</expectedscore>
<expectedpenalty>0.0000000</expectedpenalty>
<expectedanswernote>prt1-1-T</expectedanswernote>
</expected>
</qtest>
<qtest>
<testcase>2</testcase>
<description/>
<testinput>
<name>ans1</name>
<value>ev(2*M,simp)</value>
</testinput>
<expected>
<name>prt1</name>
<expectedscore>0.0000000</expectedscore>
<expectedpenalty>0.1000000</expectedpenalty>
<expectedanswernote>prt1-1-F</expectedanswernote>
</expected>
</qtest>
</question>
</quiz>
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