Doing It by the Numbers: Javascript Calculations in Web-Based Instructional Material, Carl Rod Nave

Another way to use the Javascript in web documents parallels the way I use a spreadsheet in instruction; to do tedious repetitive calculations needed for a design problem. Even the calculation of capacitive reactance is a bit tedious if you do it repetitively, so this calculation saves time. In this case the formula is active, and you can click on the item you wish to calculate.

Even more useful is a more involved calculation like a series RLC circuit. Doing this calculation once by calculator is a lot of work, so in the RLC lab, our students will typically put it on a spreadsheet. This Javascript calculation does essentially the same thing as the spreadsheet, but with the additional graphic elements which put it into context.