The volume of a cuboid is 6.4m**3, the length is 8m, the width is 4m, and what is the height.
一个长方体的体积是6.4m**3，长是8m，宽是4m，高是多少．
<gadget id="calculator">8 * 4</gadget>
<output>32</output>

<gadget id="calculator">6.4 / 32</gadget>
<output>0.2</output>

<result>0.2</result>