Graphing Piecewise Functions on Desmos

Graphing Piecewise Functions on Desmosの要点や背景を丁寧にまとめました。最新トレンドを一目で把握できます。

Now, math teachers love their open and closed circles. You know—the ones that show if a point is included or excluded. In Desmos, you have to be ruthlessly precise with your conditions.

If you want a closed circle at x=2, use x ≤ 2. Open circle? Use x < 2. Miss one little equals sign and your graph will look like it has a hole. And not the trendy, donut-shop kind of hole. The “my teacher just sighed at my screen” kind.

Pro tip: if you’re not sure, hover over the point. Desmos will show you a little dot. If it’s hollow, you messed up. Go back and add that sneaky = sign.