If the area of the base of a cone is 1 square meter and the volume is 1 cubic meter, what is the height?
一个圆锥的底面积是1平方米，体积是1立方米，则高是多少．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 / (1/3) / 1</gadget>
<output>3</output>

<result>3</result>