What is the volume in liters of a cube with a perimeter of 1.6 decimeters?
一个底面周长是1.6分米的正方体鱼缸的容积是多少升．
<gadget id="calculator">1.6 / 4</gadget>
<output>0.4</output>

<gadget id="calculator">0.4 * 0.4 * 0.4</gadget>
<output>0.064</output>

<result>0.064</result>