How many cubic centimeters of wood should be removed if a cylindrical wood block with a base diameter of 4 cm and a height of 6 cm is processed into the largest cone?
把一个底面直径4厘米，高6厘米的圆柱形木块加工成最大的圆锥，要去掉多少立方厘米的木料？
<gadget id="calculator">4 / 2</gadget>
<output>2</output>

<gadget id="calculator">2 ** 2</gadget>
<output>4</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

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

<gadget id="calculator">3.14 * 4 * 6 * (2/3)</gadget>
<output>50.24</output>

<result>50.24</result>