<!DOCTYPE html> <html> <head> <title>MathJax Dynamic Steps Test Page</title> <!– Copyright © 2011-2018 The MathJax Consortium –> <meta http-equiv=“Content-Type” content=“text/html; charset=UTF-8” /> <meta http-equiv=“X-UA-Compatible” content=“IE=edge” /> <meta name=“viewport” content=“width=device-width, initial-scale=1”>
<script type=“text/x-mathjax-config”>
// // Make displayed equations be aligned left and indented // MathJax.Hub.Config({ displayAlign: "left", displayIndent: "2em" }); // // Enable the step button after the equation is typeset // MathJax.Hub.Queue(function () { document.getElementById("step").disabled = false; });
</script> <script type=“text/javascript” src=“../MathJax.js?config=TeX-AMS_HTML-full”></script>
<script type=“text/javascript”> // // Use a closure to hide the local variable // (function () {
var n = 1; // // Make the current step be visible, and increment the step. // If it is the last step, disable the step button. // Once a step is taken, the reset button is made available. // window.ShowStep = function () { document.getElementById("Step"+n).style.visibility = "visible"; n++; if (!document.getElementById("Step"+n)) {document.getElementById("step").disabled = true} document.getElementById("reset").disabled = false; } // // Enable the step button and disable the reset button. // Hide the steps. // window.ResetSteps = function () { document.getElementById("step").disabled = false; document.getElementById("reset").disabled = true; var i = 1, step; n = 1; while (step = document.getElementById("Step"+i)) {step.style.visibility = "hidden"; i++} }
})(); </script>
<style> /*
* Start with the steps being hidden */
#Step1, #Step2, #Step3, #Step4, #Step5 {
visibility: hidden;
}
h1 {
background: #CCCCCC; padding: .2em 1em; border-top: 3px solid #666666; border-bottom: 3px solid #999999;
} </style>
</head> <body>
<h1>Dynamic Equations in MathJax</h1>
<blockquote> <p> Expand the following: begin{align}
(x+1)^2 &\cssId{Step1}{= (x+1)(x+1)}\\ &\cssId{Step2}{= x(x+1) + 1(x+1)}\\ &\cssId{Step3}{= (x^2+x) + (x+1)}\\ &\cssId{Step4}{= x^2 + (x + x) + 1}\\ &\cssId{Step5}{= x^2+2x+1}\\
end{align} </p>
<input type=“button” onclick=“ShowStep()” value=“Show Next Step” id=“step” disabled=“true” /> <input type=“button” onclick=“ResetSteps()” value=“Reset” id=“reset” disabled=“true” /> </blockquote>
</body> </html>