Looking for examples of alt text for math equations

We have used MathJax using the following method:

Loading the script from the CDN (or local file) in the Slide Master when timeline starts

function loadMathJax() {
	const script = document.createElement('script');
	script.src = "https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js";
	script.async = true;
	// Find the last script in the head
	const lastScript = document.head.getElementsByTagName('script');
	const lastScriptElement = lastScript[lastScript.length - 1];
	// Insert the new script after the last script
	if (lastScriptElement) {
	  lastScriptElement.parentNode.insertBefore(script, lastScriptElement.nextSibling);
	} else {
	  document.head.appendChild(script);
	}
	// set loaded flag;
	window.MathJaxLoaded = true;
  }
  if(typeof window.MathJaxLoaded === "undefined") loadMathJax();

And then defining the equations like this on screen:

And the ALT text value of this equation would use the special syntax for the MathJax library:

Due to how Storyline creates the ALT text, actually works in the favour of the library, as Storyline places an aria-hidden on the element, and copies the content of the ALT text value to a new DIV container which is then processed by MathJax, which results in an accessible version of the equation:

<mjx-container class="MathJax CtxtMenu_Attached_0" jax="CHTML" display="true" tabindex="0" ctxtmenu_counter="0" style="font-size: 114.6%; position: relative;">
	<mjx-math display="true" class="MJX-TEX" aria-hidden="true" style="margin-left: 0px; margin-right: 0px;">
		<mjx-msup>
			<mjx-mi class="mjx-i">
				<mjx-c class="mjx-c1D44E TEX-I"></mjx-c>
			</mjx-mi>
			<mjx-script style="vertical-align: 0.413em;">
				<mjx-mn class="mjx-n" size="s">
					<mjx-c class="mjx-c32"></mjx-c>
				</mjx-mn>
			</mjx-script>
		</mjx-msup>
		<mjx-mo class="mjx-n" space="3">
			<mjx-c class="mjx-c2B"></mjx-c>
		</mjx-mo>
		<mjx-msup space="3">
			<mjx-mi class="mjx-i">
				<mjx-c class="mjx-c1D44F TEX-I"></mjx-c>
			</mjx-mi>
			<mjx-script style="vertical-align: 0.413em;">
				<mjx-mn class="mjx-n" size="s">
					<mjx-c class="mjx-c32"></mjx-c>
				</mjx-mn>
			</mjx-script>
		</mjx-msup>
		<mjx-mo class="mjx-n" space="4">
			<mjx-c class="mjx-c3D"></mjx-c>
		</mjx-mo>
		<mjx-msup space="4">
			<mjx-mi class="mjx-i">
				<mjx-c class="mjx-c1D450 TEX-I"></mjx-c>
			</mjx-mi>
			<mjx-script style="vertical-align: 0.413em;">
				<mjx-mn class="mjx-n" size="s">
					<mjx-c class="mjx-c32"></mjx-c>
				</mjx-mn>
			</mjx-script>
		</mjx-msup>
	</mjx-math>
	<mjx-assistive-mml unselectable="on" display="block">
		<math
			xmlns="http://www.w3.org/1998/Math/MathML" display="block">
			<msup>
				<mi>a</mi>
				<mn>2</mn>
			</msup>
			<mo>+</mo>
			<msup>
				<mi>b</mi>
				<mn>2</mn>
			</msup>
			<mo>=</mo>
			<msup>
				<mi>c</mi>
				<mn>2</mn>
			</msup>
		</math>
	</mjx-assistive-mml>
</mjx-container>