The diameter of the base of a cone is 2 decimeters and the height is 6 decimeters. What is the volume in cubic decimeters?
圆锥的底面直径是2分米，高6分米，体积是多少立方分米．
<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">3.14 * 1 * 6 * (1/3)</gadget>
<output>6.28</output>

<result>6.28</result>