change it

gitbook/plugins/gitbook-plugin-mathjax/plugin.js

@@ -0,0 +1,13 @@
+require(["gitbook"], function(gitbook) {
+    MathJax.Hub.Config({
+        tex2jax: {
+            inlineMath: [['$','$'], ['\\(','\\)']],
+            processEscapes: true
+        }
+    });
+
+
+    gitbook.events.bind("page.change", function() {
+        MathJax.Hub.Typeset()
+    });
+});

gitbook/plugins/gitbook-plugin-mixpanel/plugin.js

@@ -0,0 +1,45 @@
+(function(e,b){if(!b.__SV){var a,f,i,g;window.mixpanel=b;b._i=[];b.init=function(a,e,d){function f(b,h){var a=h.split(".");2==a.length&&(b=b[a[0]],h=a[1]);b[h]=function(){b.push([h].concat(Array.prototype.slice.call(arguments,0)))}}var c=b;"undefined"!==typeof d?c=b[d]=[]:d="mixpanel";c.people=c.people||[];c.toString=function(b){var a="mixpanel";"mixpanel"!==d&&(a+="."+d);b||(a+=" (stub)");return a};c.people.toString=function(){return c.toString(1)+".people (stub)"};i="disable track track_pageview track_links track_forms register register_once alias unregister identify name_tag set_config people.set people.set_once people.increment people.append people.track_charge people.clear_charges people.delete_user".split(" ");
+for(g=0;g<i.length;g++)f(c,i[g]);b._i.push([a,e,d])};b.__SV=1.2;a=e.createElement("script");a.type="text/javascript";a.async=!0;a.src=("https:"===e.location.protocol?"https:":"http:")+'//cdn.mxpnl.com/libs/mixpanel-2.2.min.js';f=e.getElementsByTagName("script")[0];f.parentNode.insertBefore(a,f)}})(document,window.mixpanel||[]);
+
+
+require(["gitbook"], function(gitbook) {
+    var isAvailable = function() {
+        return (
+            typeof mixpanel !== "undefined" &&
+            typeof mixpanel.track === "function"
+        );
+    };
+
+    var track = function(e, data, t) {
+        if (!isAvailable()) {
+            console.warn("tracking not available!");
+            t = t || 500;
+            setTimeout(function() {
+                console.log(" -> retest tracking");
+                track(e, data, t*2);
+            }, t);
+            return;
+        }
+        console.log("track", e);
+
+        data = data || {};
+        data.domain = window.location.host;
+
+        mixpanel.track(e, data);
+    };
+
+    gitbook.events.bind("start", function(e, config) {
+        config.mixpanel = config.mixpanel || {};
+
+        mixpanel.init(config.mixpanel.token || "01eb2b950ae09a5fdb15a98dcc5ff20e");
+        track("page.start");
+    });
+
+    gitbook.events.bind("page.change", function() {
+        track("page.change");
+    });
+
+    gitbook.events.bind("exercise.submit", function(e, data) {
+        track("exercise.submit", data);
+    });
+});