diff --git a/webapp/composer.json b/webapp/composer.json
index b3930db922..af85b2798e 100644
--- a/webapp/composer.json
+++ b/webapp/composer.json
@@ -71,6 +71,7 @@
 		"jms/serializer-bundle": "^5.2",
 		"knplabs/knp-paginator-bundle": "^6.6",
 		"league/commonmark": "^2.3",
+		"mathjax/mathjax": "^4.0",
 		"mbostock/d3": "^3.5",
 		"nelmio/api-doc-bundle": "^5.0",
 		"nelmio/cors-bundle": "^2.4",
diff --git a/webapp/composer.lock b/webapp/composer.lock
index c6b0c1bcbb..230fca5ceb 100644
--- a/webapp/composer.lock
+++ b/webapp/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "88f6e44e48730e8efd3a8ccaeefb5ed7",
+    "content-hash": "4309b9d291f08f0533b4c6529b37513d",
     "packages": [
         {
             "name": "apalfrey/select2-bootstrap-5-theme",
@@ -3089,6 +3089,56 @@
             },
             "time": "2024-03-31T07:05:07+00:00"
         },
+        {
+            "name": "mathjax/mathjax",
+            "version": "4.0.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/mathjax/MathJax.git",
+                "reference": "cfcb21644c5f06f59c0211a928690b7284073df7"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/mathjax/MathJax/zipball/cfcb21644c5f06f59c0211a928690b7284073df7",
+                "reference": "cfcb21644c5f06f59c0211a928690b7284073df7",
+                "shasum": ""
+            },
+            "type": "library",
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "Apache-2.0"
+            ],
+            "authors": [
+                {
+                    "name": "MathJax Consortium",
+                    "homepage": "https://github.com/mathjax"
+                }
+            ],
+            "description": "MathJax is an open-source JavaScript display engine for LaTeX, MathML, and AsciiMath notation that works in all modern browsers.",
+            "homepage": "http://www.mathjax.org/",
+            "keywords": [
+                "AsciiMath",
+                "JS",
+                "MathML",
+                "latex",
+                "math"
+            ],
+            "support": {
+                "issues": "https://github.com/mathjax/MathJax/issues",
+                "source": "https://github.com/mathjax/MathJax/tree/4.0.0"
+            },
+            "funding": [
+                {
+                    "url": "https://numfocus.org/donate-to-mathjax",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/numfocus",
+                    "type": "github"
+                }
+            ],
+            "time": "2025-08-04T19:29:47+00:00"
+        },
         {
             "name": "mbostock/d3",
             "version": "v3.5.17",
diff --git a/webapp/public/js/domjudge.js b/webapp/public/js/domjudge.js
index d500dcbac6..db45f2dc0b 100644
--- a/webapp/public/js/domjudge.js
+++ b/webapp/public/js/domjudge.js
@@ -939,6 +939,7 @@ function previewClarification($input, $previewDiv) {
             }
         }).done(function (data) {
             $previewDiv.html(data.html);
+            MathJax.typesetPromise([document.getElementById($previewDiv[0].id)]);
         });
     }
 }
diff --git a/webapp/public/mathjax b/webapp/public/mathjax
new file mode 120000
index 0000000000..fac19bd5a5
--- /dev/null
+++ b/webapp/public/mathjax
@@ -0,0 +1 @@
+../vendor/mathjax/mathjax
\ No newline at end of file
diff --git a/webapp/public/mathjaxfonts/mjx-ncm-b.woff2 b/webapp/public/mathjaxfonts/mjx-ncm-b.woff2
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index 0000000000..09c4a91731
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diff --git a/webapp/public/mathjaxfonts/mjx-ncm-be.woff2 b/webapp/public/mathjaxfonts/mjx-ncm-be.woff2
new file mode 100644
index 0000000000..77d4928237
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diff --git a/webapp/public/mathjaxfonts/mjx-ncm-bi.woff2 b/webapp/public/mathjaxfonts/mjx-ncm-bi.woff2
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diff --git a/webapp/public/mathjaxfonts/mjx-ncm-brk.woff2 b/webapp/public/mathjaxfonts/mjx-ncm-brk.woff2
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index 0000000000..a000731ab7
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diff --git a/webapp/public/mathjaxfonts/mjx-ncm-c.woff2 b/webapp/public/mathjaxfonts/mjx-ncm-c.woff2
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diff --git a/webapp/public/mathjaxfonts/mjx-ncm-ds.woff2 b/webapp/public/mathjaxfonts/mjx-ncm-ds.woff2
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diff --git a/webapp/public/mathjaxfonts/mjx-ncm-em.woff2 b/webapp/public/mathjaxfonts/mjx-ncm-em.woff2
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diff --git a/webapp/public/mathjaxfonts/mjx-ncm-f.woff2 b/webapp/public/mathjaxfonts/mjx-ncm-f.woff2
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index 0000000000..cf97f4c385
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diff --git a/webapp/public/mathjaxfonts/mjx-ncm-fb.woff2 b/webapp/public/mathjaxfonts/mjx-ncm-fb.woff2
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diff --git a/webapp/public/mathjaxfonts/mjx-ncm-i.woff2 b/webapp/public/mathjaxfonts/mjx-ncm-i.woff2
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diff --git a/webapp/public/mathjaxfonts/mjx-ncm-lo.woff2 b/webapp/public/mathjaxfonts/mjx-ncm-lo.woff2
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index 0000000000..2184b929eb
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diff --git a/webapp/public/mathjaxfonts/mjx-ncm-lt.woff2 b/webapp/public/mathjaxfonts/mjx-ncm-lt.woff2
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index 0000000000..3b6edfc317
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diff --git a/webapp/public/mathjaxfonts/mjx-ncm-m.woff2 b/webapp/public/mathjaxfonts/mjx-ncm-m.woff2
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index 0000000000..020dd9e136
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diff --git a/webapp/public/mathjaxfonts/mjx-ncm-mi.woff2 b/webapp/public/mathjaxfonts/mjx-ncm-mi.woff2
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index 0000000000..ee69b10c8e
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index 0000000000..9926042f47
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diff --git a/webapp/public/mathjaxfonts/mjx-ncm-ob.woff2 b/webapp/public/mathjaxfonts/mjx-ncm-ob.woff2
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index 0000000000..d3d0fef17d
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diff --git a/webapp/public/mathjaxfonts/mjx-ncm-os.woff2 b/webapp/public/mathjaxfonts/mjx-ncm-os.woff2
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index 0000000000..8d2368a770
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diff --git a/webapp/public/mathjaxfonts/mjx-ncm-rb.woff2 b/webapp/public/mathjaxfonts/mjx-ncm-rb.woff2
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index 0000000000..cea0352ac4
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diff --git a/webapp/public/mathjaxfonts/mjx-ncm-s.woff2 b/webapp/public/mathjaxfonts/mjx-ncm-s.woff2
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index 0000000000..44fad51720
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diff --git a/webapp/public/mathjaxfonts/mjx-ncm-s3.woff2 b/webapp/public/mathjaxfonts/mjx-ncm-s3.woff2
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diff --git a/webapp/public/mathjaxfonts/mjx-ncm-s4.woff2 b/webapp/public/mathjaxfonts/mjx-ncm-s4.woff2
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diff --git a/webapp/public/mathjaxfonts/mjx-ncm-s5.woff2 b/webapp/public/mathjaxfonts/mjx-ncm-s5.woff2
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index 0000000000..70b92ffa9a
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diff --git a/webapp/public/mathjaxfonts/mjx-ncm-s6.woff2 b/webapp/public/mathjaxfonts/mjx-ncm-s6.woff2
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diff --git a/webapp/public/mathjaxfonts/mjx-ncm-s7.woff2 b/webapp/public/mathjaxfonts/mjx-ncm-s7.woff2
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index 0000000000..ca39f6202d
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diff --git a/webapp/public/mathjaxfonts/mjx-ncm-sb.woff2 b/webapp/public/mathjaxfonts/mjx-ncm-sb.woff2
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index 0000000000..fc584ba885
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diff --git a/webapp/public/mathjaxfonts/mjx-ncm-so.woff2 b/webapp/public/mathjaxfonts/mjx-ncm-so.woff2
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index 0000000000..47548fb591
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diff --git a/webapp/public/mathjaxfonts/mjx-ncm-ss.woff2 b/webapp/public/mathjaxfonts/mjx-ncm-ss.woff2
new file mode 100644
index 0000000000..dd8aa33b74
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diff --git a/webapp/public/mathjaxfonts/mjx-ncm-ssb.woff2 b/webapp/public/mathjaxfonts/mjx-ncm-ssb.woff2
new file mode 100644
index 0000000000..45176fb12c
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diff --git a/webapp/public/mathjaxfonts/mjx-ncm-ssbi.woff2 b/webapp/public/mathjaxfonts/mjx-ncm-ssbi.woff2
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index 0000000000..358d31ebf8
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diff --git a/webapp/public/mathjaxfonts/mjx-ncm-ssi.woff2 b/webapp/public/mathjaxfonts/mjx-ncm-ssi.woff2
new file mode 100644
index 0000000000..eeab8d11ff
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diff --git a/webapp/public/mathjaxfonts/mjx-ncm-u.woff2 b/webapp/public/mathjaxfonts/mjx-ncm-u.woff2
new file mode 100644
index 0000000000..097bcb8e85
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diff --git a/webapp/public/mathjaxfonts/mjx-ncm-ue.woff2 b/webapp/public/mathjaxfonts/mjx-ncm-ue.woff2
new file mode 100644
index 0000000000..6b8ba57019
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diff --git a/webapp/public/mathjaxfonts/mjx-ncm-v.woff2 b/webapp/public/mathjaxfonts/mjx-ncm-v.woff2
new file mode 100644
index 0000000000..89b6d49609
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diff --git a/webapp/public/mathjaxfonts/mjx-ncm-zero.woff2 b/webapp/public/mathjaxfonts/mjx-ncm-zero.woff2
new file mode 100644
index 0000000000..2fc081c1f5
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diff --git a/webapp/src/EventListener/AddContentSecurityPolicyListener.php b/webapp/src/EventListener/AddContentSecurityPolicyListener.php
index d244aa0796..91e2262076 100644
--- a/webapp/src/EventListener/AddContentSecurityPolicyListener.php
+++ b/webapp/src/EventListener/AddContentSecurityPolicyListener.php
@@ -17,7 +17,7 @@ public function __invoke(ResponseEvent $event): void
         // the profiler requires 'unsafe-eval' for script-src 'self'.
         $response = $event->getResponse();
         $cspExtra = $this->profiler ? "'unsafe-eval'" : "";
-        $csp = "default-src 'self'; style-src 'self' 'unsafe-inline'; script-src 'self' 'unsafe-inline' $cspExtra; img-src 'self' data:; worker-src 'self' blob:";
+        $csp = "default-src 'self' https://cdn.jsdelivr.net; style-src 'self' 'unsafe-inline'; script-src 'self' https://cdn.jsdelivr.net 'unsafe-inline' $cspExtra; img-src 'self' data:; worker-src 'self' blob:";
         $response->headers->set('Content-Security-Policy', $csp);
     }
 }
diff --git a/webapp/templates/base.html.twig b/webapp/templates/base.html.twig
index 9b54ed453b..26655e8513 100644
--- a/webapp/templates/base.html.twig
+++ b/webapp/templates/base.html.twig
@@ -13,6 +13,14 @@
     <script src="{{ asset("js/jquery.min.js") }}"></script>
     <script src="{{ asset("js/jquery.debounce.min.js") }}"></script>
     <script src="{{ asset("js/bootstrap.bundle.min.js") }}"></script>
+    <script>
+        window.MathJax = {
+          tex: { inlineMath: [['$', '$'], ['\\(', '\\)']] },
+          svg: { fontCache: 'global' },
+          chtml: { fontURL: "{{ app.request.basePath }}/mathjaxfonts" }
+        };
+    </script>
+    <script src="{{ app.request.basePath }}/mathjax/tex-chtml.js"></script>
 
     <script src="{{ asset("js/domjudge.js") }}"></script>
     {% for file in customAssetFiles('js') %}
diff --git a/webapp/templates/jury/menu.html.twig b/webapp/templates/jury/menu.html.twig
index 12bddba889..88c96502d7 100644
--- a/webapp/templates/jury/menu.html.twig
+++ b/webapp/templates/jury/menu.html.twig
@@ -7,6 +7,7 @@
 
     {% set current_route = app.request.attributes.get('_route') %}
 
+    <span>Euler's identity: $( e^{i\pi} + 1 = 0 )$</span>
     <div class="collapse navbar-collapse" id="menuDefault" data-update-url="{{ path('jury_ajax_updates') }}">
         <ul class="navbar-nav me-auto">