How To: Graphing with Restrictions

Limiting the domain and range on the Desmos graphing calculator is simple. Once you’ve mastered this feature you’ll be cranking out incredible graph art in no time. Watch this quick tutorial to learn how:

student highlight: Amy, high school senior

Occasionally, we see a graph that just blows us away with its beauty and ingenuity. Like this one:

How To: Graphing Inequalities

Graphing Inequalities

Adding colored shading to your Desmos graphs is easy with inequalities. Use < and > for strict inequalities (dotted line), and <= or >= for non-strict inequalities (solid line). Check out the video below for a quick demo.

A bug in our PI?

A couple days ago, we got a bug report that left us shaking our heads in collective confusion. The trouble? This graph:

Notice that f(π) is returning “undefined.” Trace doesn’t fare any better. But tan(π) = 0, so √tan(π) should also equal 0. What gives?

We need your #Crunchies vote!

Each year “deserving startups, tenacious entrepreneurs and clairvoyant investors” are nominated for a Crunchie Award for making waves in the tech scene. This year, we’re excited to be in the running for Best Education Startup — and we need your vote to win! A brand new…

How To: Points of Interest

Have you ever wondered how to find points of interest on Desmos? It’s easy! Watch the brief video tutorial beneath this post for a quick rundown of how to find maxes, mins, intercepts, and intersections between several expressions.