A cylinder and a cone have the same base area, and the volume of the cylinder is twice the volume of the cone, then the height of the cylinder is the height of the cone ((())/(())).
一个圆柱体和一个圆锥体的底面积相等，圆柱体的体积是圆锥体体积的2倍，那么圆柱的高是圆锥的高的((())/(()))．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">2 * (1/3)</gadget>
<output>2/3 = around 0.666667</output>

<result>2/3 = around 0.666667</result>