A conical wheat pile has a base diameter of 4 meters and a height of 0.9 meters. Put this pile of wheat in a cylindrical grain storehouse with a base diameter of 20 decimeters and just fill it up. What is the height of the cylinder in meters?
一个圆锥形的小麦堆，量得底面直径是4米，高0.9米．把这堆小麦装在一个底面直径是20分米的圆柱形粮囤里刚好装满，圆柱的高是多少米？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

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

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

<gadget id="calculator">20 / 10</gadget>
<output>2</output>

<gadget id="calculator">2 / 2</gadget>
<output>1</output>

<gadget id="calculator">1 ** 2</gadget>
<output>1</output>

<gadget id="calculator">3.14 * 1</gadget>
<output>3.14</output>

<gadget id="calculator">0.9 / 3.14</gadget>
<output>0.286624</output>

<gadget id="calculator">(1/3) * 3.14 * 4 * 0.286624</gadget>
<output>1.199999</output>

<result>1.199999</result>