What is the volume of a cylinder whose base radius is 10 cm and height is 10 cm?
一个圆柱的底面半径是10cm，高是10cm，它的体积是多少．
<gadget id="calculator">10 ** 2</gadget>
<output>100</output>

<gadget id="calculator">3.14 * 100 * 10</gadget>
<output>3_140</output>

<result>3_140</result>