\[ \bigl(0,2\bigr), \quad \left( \frac{1}{\sqrt{3}}, \sqrt{3} \right), \quad \bigl(1, 1 \bigr), \quad \bigl( 0, -2 \bigr), \quad \left( - \frac{1}{\sqrt{3}}, - \sqrt{3} \right), \quad \bigl( -1, -1 \bigr). \]
Place the cursor over the image to start the animation.
Five of the above level surfaces.
Place the cursor over the image to start the animation.
Place the cursor over the image to start the animation.