added more content

node_modules/katex/dist/README.md

@@ -0,0 +1,68 @@
+# [<img src="https://khan.github.io/KaTeX/katex-logo.svg" width="130" alt="KaTeX">](https://khan.github.io/KaTeX/) [![Build Status](https://travis-ci.org/Khan/KaTeX.svg?branch=master)](https://travis-ci.org/Khan/KaTeX)
+
+[![Join the chat at https://gitter.im/Khan/KaTeX](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/Khan/KaTeX?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+
+KaTeX is a fast, easy-to-use JavaScript library for TeX math rendering on the web.
+
+ * **Fast:** KaTeX renders its math synchronously and doesn't need to reflow the page. See how it compares to a competitor in [this speed test](http://jsperf.com/katex-vs-mathjax/).
+ * **Print quality:** KaTeX’s layout is based on Donald Knuth’s TeX, the gold standard for math typesetting.
+ * **Self contained:** KaTeX has no dependencies and can easily be bundled with your website resources.
+ * **Server side rendering:** KaTeX produces the same output regardless of browser or environment, so you can pre-render expressions using Node.js and send them as plain HTML.
+
+KaTeX supports all major browsers, including Chrome, Safari, Firefox, Opera, and IE 8 - IE 11.  A list of supported  commands can be on the [wiki](https://github.com/Khan/KaTeX/wiki/Function-Support-in-KaTeX).
+
+## Usage
+
+You can [download KaTeX](https://github.com/khan/katex/releases) and host it on your server or include the `katex.min.js` and `katex.min.css` files on your page directly from a CDN:
+
+```html
+<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/KaTeX/0.7.1/katex.min.css">
+<script src="https://cdnjs.cloudflare.com/ajax/libs/KaTeX/0.7.1/katex.min.js"></script>
+```
+
+#### In-browser rendering
+
+Call `katex.render` with a TeX expression and a DOM element to render into:
+
+```js
+katex.render("c = \\pm\\sqrt{a^2 + b^2}", element);
+```
+
+If KaTeX can't parse the expression, it throws a `katex.ParseError` error.
+
+#### Server side rendering or rendering to a string
+
+To generate HTML on the server or to generate an HTML string of the rendered math, you can use `katex.renderToString`:
+
+```js
+var html = katex.renderToString("c = \\pm\\sqrt{a^2 + b^2}");
+// '<span class="katex">...</span>'
+```
+
+Make sure to include the CSS and font files, but there is no need to include the JavaScript. Like `render`, `renderToString` throws if it can't parse the expression.
+
+#### Rendering options
+
+You can provide an object of options as the last argument to `katex.render` and `katex.renderToString`. Available options are:
+
+- `displayMode`: `boolean`. If `true` the math will be rendered in display mode, which will put the math in display style (so `\int` and `\sum` are large, for example), and will center the math on the page on its own line. If `false` the math will be rendered in inline mode. (default: `false`)
+- `throwOnError`: `boolean`. If `true`, KaTeX will throw a `ParseError` when it encounters an unsupported command. If `false`, KaTeX will render the unsupported command as text in the color given by `errorColor`. (default: `true`)
+- `errorColor`: `string`. A color string given in the format `"#XXX"` or `"#XXXXXX"`. This option determines the color which unsupported commands are rendered in. (default: `#cc0000`)
+
+For example:
+
+```js
+katex.render("c = \\pm\\sqrt{a^2 + b^2}", element, { displayMode: true });
+```
+
+#### Automatic rendering of math on a page
+
+Math on the page can be automatically rendered using the auto-render extension. See [the Auto-render README](contrib/auto-render/README.md) for more information.
+
+## Contributing
+
+See [CONTRIBUTING.md](CONTRIBUTING.md)
+
+## License
+
+KaTeX is licensed under the [MIT License](http://opensource.org/licenses/MIT).

node_modules/katex/dist/contrib/auto-render.min.js

@@ -0,0 +1 @@
+(function(e){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=e()}else if(typeof define==="function"&&define.amd){define([],e)}else{var t;if(typeof window!=="undefined"){t=window}else if(typeof global!=="undefined"){t=global}else if(typeof self!=="undefined"){t=self}else{t=this}t.renderMathInElement=e()}})(function(){var e,t,r;return function n(e,t,r){function a(o,l){if(!t[o]){if(!e[o]){var f=typeof require=="function"&&require;if(!l&&f)return f(o,!0);if(i)return i(o,!0);var d=new Error("Cannot find module '"+o+"'");throw d.code="MODULE_NOT_FOUND",d}var s=t[o]={exports:{}};e[o][0].call(s.exports,function(t){var r=e[o][1][t];return a(r?r:t)},s,s.exports,n,e,t,r)}return t[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)a(r[o]);return a}({1:[function(e,t,r){var n=e("./splitAtDelimiters");var a=function(e,t){var r=[{type:"text",data:e}];for(var a=0;a<t.length;a++){var i=t[a];r=n(r,i.left,i.right,i.display||false)}return r};var i=function(e,t){var r=a(e,t);var n=document.createDocumentFragment();for(var i=0;i<r.length;i++){if(r[i].type==="text"){n.appendChild(document.createTextNode(r[i].data))}else{var o=document.createElement("span");var l=r[i].data;try{katex.render(l,o,{displayMode:r[i].display})}catch(f){if(!(f instanceof katex.ParseError)){throw f}console.error("KaTeX auto-render: Failed to parse `"+r[i].data+"` with ",f);n.appendChild(document.createTextNode(r[i].rawData));continue}n.appendChild(o)}}return n};var o=function(e,t,r){for(var n=0;n<e.childNodes.length;n++){var a=e.childNodes[n];if(a.nodeType===3){var l=i(a.textContent,t);n+=l.childNodes.length-1;e.replaceChild(l,a)}else if(a.nodeType===1){var f=r.indexOf(a.nodeName.toLowerCase())===-1;if(f){o(a,t,r)}}}};var l={delimiters:[{left:"$$",right:"$$",display:true},{left:"\\[",right:"\\]",display:true},{left:"\\(",right:"\\)",display:false}],ignoredTags:["script","noscript","style","textarea","pre","code"]};var f=function(e){var t;var r;for(var n=1,a=arguments.length;n<a;n++){t=arguments[n];for(r in t){if(Object.prototype.hasOwnProperty.call(t,r)){e[r]=t[r]}}}return e};var d=function(e,t){if(!e){throw new Error("No element provided to render")}t=f({},l,t);o(e,t.delimiters,t.ignoredTags)};t.exports=d},{"./splitAtDelimiters":2}],2:[function(e,t,r){var n=function(e,t,r){var n=r;var a=0;var i=e.length;while(n<t.length){var o=t[n];if(a<=0&&t.slice(n,n+i)===e){return n}else if(o==="\\"){n++}else if(o==="{"){a++}else if(o==="}"){a--}n++}return-1};var a=function(e,t,r,a){var i=[];for(var o=0;o<e.length;o++){if(e[o].type==="text"){var l=e[o].data;var f=true;var d=0;var s;s=l.indexOf(t);if(s!==-1){d=s;i.push({type:"text",data:l.slice(0,d)});f=false}while(true){if(f){s=l.indexOf(t,d);if(s===-1){break}i.push({type:"text",data:l.slice(d,s)});d=s}else{s=n(r,l,d+t.length);if(s===-1){break}i.push({type:"math",data:l.slice(d+t.length,s),rawData:l.slice(d,s+r.length),display:a});d=s+r.length}f=!f}i.push({type:"text",data:l.slice(d)})}else{i.push(e[o])}}return i};t.exports=a},{}]},{},[1])(1)});

node_modules/katex/dist/katex.css

@@ -0,0 +1,976 @@
+@font-face {
+  font-family: 'KaTeX_AMS';
+  src: url('fonts/KaTeX_AMS-Regular.eot');
+  src: url('fonts/KaTeX_AMS-Regular.eot#iefix') format('embedded-opentype'), url('fonts/KaTeX_AMS-Regular.woff2') format('woff2'), url('fonts/KaTeX_AMS-Regular.woff') format('woff'), url('fonts/KaTeX_AMS-Regular.ttf') format('truetype');
+  font-weight: normal;
+  font-style: normal;
+}
+@font-face {
+  font-family: 'KaTeX_Caligraphic';
+  src: url('fonts/KaTeX_Caligraphic-Bold.eot');
+  src: url('fonts/KaTeX_Caligraphic-Bold.eot#iefix') format('embedded-opentype'), url('fonts/KaTeX_Caligraphic-Bold.woff2') format('woff2'), url('fonts/KaTeX_Caligraphic-Bold.woff') format('woff'), url('fonts/KaTeX_Caligraphic-Bold.ttf') format('truetype');
+  font-weight: bold;
+  font-style: normal;
+}
+@font-face {
+  font-family: 'KaTeX_Caligraphic';
+  src: url('fonts/KaTeX_Caligraphic-Regular.eot');
+  src: url('fonts/KaTeX_Caligraphic-Regular.eot#iefix') format('embedded-opentype'), url('fonts/KaTeX_Caligraphic-Regular.woff2') format('woff2'), url('fonts/KaTeX_Caligraphic-Regular.woff') format('woff'), url('fonts/KaTeX_Caligraphic-Regular.ttf') format('truetype');
+  font-weight: normal;
+  font-style: normal;
+}
+@font-face {
+  font-family: 'KaTeX_Fraktur';
+  src: url('fonts/KaTeX_Fraktur-Bold.eot');
+  src: url('fonts/KaTeX_Fraktur-Bold.eot#iefix') format('embedded-opentype'), url('fonts/KaTeX_Fraktur-Bold.woff2') format('woff2'), url('fonts/KaTeX_Fraktur-Bold.woff') format('woff'), url('fonts/KaTeX_Fraktur-Bold.ttf') format('truetype');
+  font-weight: bold;
+  font-style: normal;
+}
+@font-face {
+  font-family: 'KaTeX_Fraktur';
+  src: url('fonts/KaTeX_Fraktur-Regular.eot');
+  src: url('fonts/KaTeX_Fraktur-Regular.eot#iefix') format('embedded-opentype'), url('fonts/KaTeX_Fraktur-Regular.woff2') format('woff2'), url('fonts/KaTeX_Fraktur-Regular.woff') format('woff'), url('fonts/KaTeX_Fraktur-Regular.ttf') format('truetype');
+  font-weight: normal;
+  font-style: normal;
+}
+@font-face {
+  font-family: 'KaTeX_Main';
+  src: url('fonts/KaTeX_Main-Bold.eot');
+  src: url('fonts/KaTeX_Main-Bold.eot#iefix') format('embedded-opentype'), url('fonts/KaTeX_Main-Bold.woff2') format('woff2'), url('fonts/KaTeX_Main-Bold.woff') format('woff'), url('fonts/KaTeX_Main-Bold.ttf') format('truetype');
+  font-weight: bold;
+  font-style: normal;
+}
+@font-face {
+  font-family: 'KaTeX_Main';
+  src: url('fonts/KaTeX_Main-Italic.eot');
+  src: url('fonts/KaTeX_Main-Italic.eot#iefix') format('embedded-opentype'), url('fonts/KaTeX_Main-Italic.woff2') format('woff2'), url('fonts/KaTeX_Main-Italic.woff') format('woff'), url('fonts/KaTeX_Main-Italic.ttf') format('truetype');
+  font-weight: normal;
+  font-style: italic;
+}
+@font-face {
+  font-family: 'KaTeX_Main';
+  src: url('fonts/KaTeX_Main-Regular.eot');
+  src: url('fonts/KaTeX_Main-Regular.eot#iefix') format('embedded-opentype'), url('fonts/KaTeX_Main-Regular.woff2') format('woff2'), url('fonts/KaTeX_Main-Regular.woff') format('woff'), url('fonts/KaTeX_Main-Regular.ttf') format('truetype');
+  font-weight: normal;
+  font-style: normal;
+}
+@font-face {
+  font-family: 'KaTeX_Math';
+  src: url('fonts/KaTeX_Math-Italic.eot');
+  src: url('fonts/KaTeX_Math-Italic.eot#iefix') format('embedded-opentype'), url('fonts/KaTeX_Math-Italic.woff2') format('woff2'), url('fonts/KaTeX_Math-Italic.woff') format('woff'), url('fonts/KaTeX_Math-Italic.ttf') format('truetype');
+  font-weight: normal;
+  font-style: italic;
+}
+@font-face {
+  font-family: 'KaTeX_SansSerif';
+  src: url('fonts/KaTeX_SansSerif-Regular.eot');
+  src: url('fonts/KaTeX_SansSerif-Regular.eot#iefix') format('embedded-opentype'), url('fonts/KaTeX_SansSerif-Regular.woff2') format('woff2'), url('fonts/KaTeX_SansSerif-Regular.woff') format('woff'), url('fonts/KaTeX_SansSerif-Regular.ttf') format('truetype');
+  font-weight: normal;
+  font-style: normal;
+}
+@font-face {
+  font-family: 'KaTeX_Script';
+  src: url('fonts/KaTeX_Script-Regular.eot');
+  src: url('fonts/KaTeX_Script-Regular.eot#iefix') format('embedded-opentype'), url('fonts/KaTeX_Script-Regular.woff2') format('woff2'), url('fonts/KaTeX_Script-Regular.woff') format('woff'), url('fonts/KaTeX_Script-Regular.ttf') format('truetype');
+  font-weight: normal;
+  font-style: normal;
+}
+@font-face {
+  font-family: 'KaTeX_Size1';
+  src: url('fonts/KaTeX_Size1-Regular.eot');
+  src: url('fonts/KaTeX_Size1-Regular.eot#iefix') format('embedded-opentype'), url('fonts/KaTeX_Size1-Regular.woff2') format('woff2'), url('fonts/KaTeX_Size1-Regular.woff') format('woff'), url('fonts/KaTeX_Size1-Regular.ttf') format('truetype');
+  font-weight: normal;
+  font-style: normal;
+}
+@font-face {
+  font-family: 'KaTeX_Size2';
+  src: url('fonts/KaTeX_Size2-Regular.eot');
+  src: url('fonts/KaTeX_Size2-Regular.eot#iefix') format('embedded-opentype'), url('fonts/KaTeX_Size2-Regular.woff2') format('woff2'), url('fonts/KaTeX_Size2-Regular.woff') format('woff'), url('fonts/KaTeX_Size2-Regular.ttf') format('truetype');
+  font-weight: normal;
+  font-style: normal;
+}
+@font-face {
+  font-family: 'KaTeX_Size3';
+  src: url('fonts/KaTeX_Size3-Regular.eot');
+  src: url('fonts/KaTeX_Size3-Regular.eot#iefix') format('embedded-opentype'), url('fonts/KaTeX_Size3-Regular.woff2') format('woff2'), url('fonts/KaTeX_Size3-Regular.woff') format('woff'), url('fonts/KaTeX_Size3-Regular.ttf') format('truetype');
+  font-weight: normal;
+  font-style: normal;
+}
+@font-face {
+  font-family: 'KaTeX_Size4';
+  src: url('fonts/KaTeX_Size4-Regular.eot');
+  src: url('fonts/KaTeX_Size4-Regular.eot#iefix') format('embedded-opentype'), url('fonts/KaTeX_Size4-Regular.woff2') format('woff2'), url('fonts/KaTeX_Size4-Regular.woff') format('woff'), url('fonts/KaTeX_Size4-Regular.ttf') format('truetype');
+  font-weight: normal;
+  font-style: normal;
+}
+@font-face {
+  font-family: 'KaTeX_Typewriter';
+  src: url('fonts/KaTeX_Typewriter-Regular.eot');
+  src: url('fonts/KaTeX_Typewriter-Regular.eot#iefix') format('embedded-opentype'), url('fonts/KaTeX_Typewriter-Regular.woff2') format('woff2'), url('fonts/KaTeX_Typewriter-Regular.woff') format('woff'), url('fonts/KaTeX_Typewriter-Regular.ttf') format('truetype');
+  font-weight: normal;
+  font-style: normal;
+}
+.katex-display {
+  display: block;
+  margin: 1em 0;
+  text-align: center;
+}
+.katex-display > .katex {
+  display: inline-block;
+  text-align: initial;
+}
+.katex {
+  font: normal 1.21em KaTeX_Main, Times New Roman, serif;
+  line-height: 1.2;
+  white-space: nowrap;
+  text-indent: 0;
+}
+.katex .katex-html {
+  display: inline-block;
+}
+.katex .katex-mathml {
+  position: absolute;
+  clip: rect(1px, 1px, 1px, 1px);
+  padding: 0;
+  border: 0;
+  height: 1px;
+  width: 1px;
+  overflow: hidden;
+}
+.katex .base {
+  display: inline-block;
+}
+.katex .strut {
+  display: inline-block;
+}
+.katex .mathrm {
+  font-style: normal;
+}
+.katex .textit {
+  font-style: italic;
+}
+.katex .mathit {
+  font-family: KaTeX_Math;
+  font-style: italic;
+}
+.katex .mathbf {
+  font-family: KaTeX_Main;
+  font-weight: bold;
+}
+.katex .amsrm {
+  font-family: KaTeX_AMS;
+}
+.katex .mathbb {
+  font-family: KaTeX_AMS;
+}
+.katex .mathcal {
+  font-family: KaTeX_Caligraphic;
+}
+.katex .mathfrak {
+  font-family: KaTeX_Fraktur;
+}
+.katex .mathtt {
+  font-family: KaTeX_Typewriter;
+}
+.katex .mathscr {
+  font-family: KaTeX_Script;
+}
+.katex .mathsf {
+  font-family: KaTeX_SansSerif;
+}
+.katex .mainit {
+  font-family: KaTeX_Main;
+  font-style: italic;
+}
+.katex .mord + .mop {
+  margin-left: 0.16667em;
+}
+.katex .mord + .mbin {
+  margin-left: 0.22222em;
+}
+.katex .mord + .mrel {
+  margin-left: 0.27778em;
+}
+.katex .mord + .minner {
+  margin-left: 0.16667em;
+}
+.katex .mop + .mord {
+  margin-left: 0.16667em;
+}
+.katex .mop + .mop {
+  margin-left: 0.16667em;
+}
+.katex .mop + .mrel {
+  margin-left: 0.27778em;
+}
+.katex .mop + .minner {
+  margin-left: 0.16667em;
+}
+.katex .mbin + .mord {
+  margin-left: 0.22222em;
+}
+.katex .mbin + .mop {
+  margin-left: 0.22222em;
+}
+.katex .mbin + .mopen {
+  margin-left: 0.22222em;
+}
+.katex .mbin + .minner {
+  margin-left: 0.22222em;
+}
+.katex .mrel + .mord {
+  margin-left: 0.27778em;
+}
+.katex .mrel + .mop {
+  margin-left: 0.27778em;
+}
+.katex .mrel + .mopen {
+  margin-left: 0.27778em;
+}
+.katex .mrel + .minner {
+  margin-left: 0.27778em;
+}
+.katex .mclose + .mop {
+  margin-left: 0.16667em;
+}
+.katex .mclose + .mbin {
+  margin-left: 0.22222em;
+}
+.katex .mclose + .mrel {
+  margin-left: 0.27778em;
+}
+.katex .mclose + .minner {
+  margin-left: 0.16667em;
+}
+.katex .mpunct + .mord {
+  margin-left: 0.16667em;
+}
+.katex .mpunct + .mop {
+  margin-left: 0.16667em;
+}
+.katex .mpunct + .mrel {
+  margin-left: 0.16667em;
+}
+.katex .mpunct + .mopen {
+  margin-left: 0.16667em;
+}
+.katex .mpunct + .mclose {
+  margin-left: 0.16667em;
+}
+.katex .mpunct + .mpunct {
+  margin-left: 0.16667em;
+}
+.katex .mpunct + .minner {
+  margin-left: 0.16667em;
+}
+.katex .minner + .mord {
+  margin-left: 0.16667em;
+}
+.katex .minner + .mop {
+  margin-left: 0.16667em;
+}
+.katex .minner + .mbin {
+  margin-left: 0.22222em;
+}
+.katex .minner + .mrel {
+  margin-left: 0.27778em;
+}
+.katex .minner + .mopen {
+  margin-left: 0.16667em;
+}
+.katex .minner + .mpunct {
+  margin-left: 0.16667em;
+}
+.katex .minner + .minner {
+  margin-left: 0.16667em;
+}
+.katex .mord.mtight {
+  margin-left: 0;
+}
+.katex .mop.mtight {
+  margin-left: 0;
+}
+.katex .mbin.mtight {
+  margin-left: 0;
+}
+.katex .mrel.mtight {
+  margin-left: 0;
+}
+.katex .mopen.mtight {
+  margin-left: 0;
+}
+.katex .mclose.mtight {
+  margin-left: 0;
+}
+.katex .mpunct.mtight {
+  margin-left: 0;
+}
+.katex .minner.mtight {
+  margin-left: 0;
+}
+.katex .mord + .mop.mtight {
+  margin-left: 0.16667em;
+}
+.katex .mop + .mord.mtight {
+  margin-left: 0.16667em;
+}
+.katex .mop + .mop.mtight {
+  margin-left: 0.16667em;
+}
+.katex .mclose + .mop.mtight {
+  margin-left: 0.16667em;
+}
+.katex .minner + .mop.mtight {
+  margin-left: 0.16667em;
+}
+.katex .reset-textstyle.textstyle {
+  font-size: 1em;
+}
+.katex .reset-textstyle.scriptstyle {
+  font-size: 0.7em;
+}
+.katex .reset-textstyle.scriptscriptstyle {
+  font-size: 0.5em;
+}
+.katex .reset-scriptstyle.textstyle {
+  font-size: 1.42857em;
+}
+.katex .reset-scriptstyle.scriptstyle {
+  font-size: 1em;
+}
+.katex .reset-scriptstyle.scriptscriptstyle {
+  font-size: 0.71429em;
+}
+.katex .reset-scriptscriptstyle.textstyle {
+  font-size: 2em;
+}
+.katex .reset-scriptscriptstyle.scriptstyle {
+  font-size: 1.4em;
+}
+.katex .reset-scriptscriptstyle.scriptscriptstyle {
+  font-size: 1em;
+}
+.katex .style-wrap {
+  position: relative;
+}
+.katex .vlist {
+  display: inline-block;
+}
+.katex .vlist > span {
+  display: block;
+  height: 0;
+  position: relative;
+}
+.katex .vlist > span > span {
+  display: inline-block;
+}
+.katex .vlist .baseline-fix {
+  display: inline-table;
+  table-layout: fixed;
+}
+.katex .msupsub {
+  text-align: left;
+}
+.katex .mfrac > span > span {
+  text-align: center;
+}
+.katex .mfrac .frac-line {
+  width: 100%;
+}
+.katex .mfrac .frac-line:before {
+  border-bottom-style: solid;
+  border-bottom-width: 1px;
+  content: "";
+  display: block;
+}
+.katex .mfrac .frac-line:after {
+  border-bottom-style: solid;
+  border-bottom-width: 0.04em;
+  content: "";
+  display: block;
+  margin-top: -1px;
+}
+.katex .mspace {
+  display: inline-block;
+}
+.katex .mspace.negativethinspace {
+  margin-left: -0.16667em;
+}
+.katex .mspace.thinspace {
+  width: 0.16667em;
+}
+.katex .mspace.negativemediumspace {
+  margin-left: -0.22222em;
+}
+.katex .mspace.mediumspace {
+  width: 0.22222em;
+}
+.katex .mspace.thickspace {
+  width: 0.27778em;
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