If a cylinder with a base diameter of 2 decimeters and a height of 3 decimeters is cut into a largest cone, how many cubic decimeters are cut off?
把一个底面直径是2分米，高是3分米的圆柱体削成一个最大的圆锥体，削去多少立方分米．
<gadget id="calculator">2 / 2</gadget>
<output>1</output>

<gadget id="calculator">1 ** 2</gadget>
<output>1</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 * 1 * 3 * (2/3)</gadget>
<output>6.28</output>

<result>6.28</result>