Added the chapter for delta modulation, and expanded the earlier chapters as well. Sliders are now formatted in two columns as before.

Author: wolffeparke

delta-modulation/index.html

@@ -79,6 +79,7 @@ <H1>
         // Get the element with id="defaultOpen" and click on it
         document.getElementById("defaultOpen").click();
         var paragraph = document.getElementById("main page");
+        var initialPageNum = 0;
         var pageNum = 0;
 
         // Add event listener to the Next/Previous button