Euclidian vs Polar

There are two main types of 2D equations: Polar and Euclidean. Euclidean is the more familiar technique of using a square x and y grid. Polar is a method of using an angle and a radius to plot a point.

• Euclidean - 2D Euclidean equations contain just the x variable. The equation implies the y= part so you don't enter that. You'd enter something like sin(2*x).

• Polar - 2D Polar equations contain just the t variable. The equation implies the r= part so you don't enter that. You'd enter something like sin(2*t).