## A Better Calculator

January 23, 2012 by John Scammell

A company called Desmos (that I know nothing about), has launched a free online graphing calculator. What’s beautiful about this one, aside from its ease of use and powerful graphing abilities, is that it uses HTML 5. I know nothing about HTML 5, other than it makes things work on iPads.

This is a screenshot from my iPad.

Their calculator is at www.abettercalculator.com . Try it out. Play around with it.

Making sliders for students to play with is simple. Just type in “a=1” and a slider appears. Now write a function that has “a” in it, and your slider just works.

Here’s one I made with four sliders for a trig function.

Here’s another nice one that Scott Seitz made for a piecewise function.

It doesn’t work on my iPhone (yet?), but the iPad looks great. Manipulating the sliders on the iPad takes a little getting used to, but after that, they work beautifully.

This one is well worth the price.

### Like this:

Like Loading...

*Related*

on January 28, 2012 at 5:16 am |A better calculator | cartesian product[…] A Better Calculator (thescamdog.wordpress.com) […]

on February 12, 2012 at 8:08 pm |BrianThat’s a neat calculator. It seems very similar to GeoGebra; don’t know if GeoGebra works on iPads or not.

on September 6, 2014 at 11:49 am |HTML5 數學繪圖計算器 – 免費! |[…] Desmos Improves Again § A Better Calculator § Desmos Graphing Calculator […]