The volume of a cylinder is 2.512 cubic meters, the diameter of the base is 0.8 meters, what is the height of the cylinder in meters.
一个圆柱的体积是2.512立方米，底面直径是0.8米，圆柱的高是多少米．
<gadget id="calculator">0.8 / 2</gadget>
<output>0.4</output>

<gadget id="calculator">0.4 ** 2</gadget>
<output>0.16</output>

<gadget id="calculator">3.14 * 0.16</gadget>
<output>0.5024</output>

<gadget id="calculator">2.512 / 0.5024</gadget>
<output>5</output>

<result>5</result>