The school has a cylindrical fountain with a perimeter of 25.12 meters. The pool can hold up to 25.12 cubic meters of water. How deep is this fountain?
学校有一个圆柱形喷水池，池内底面周长是25.12米．水池内最多能盛水25.12立方米．这个喷水池深多少米？
<gadget id="calculator">25.12 / 3.14 / 2</gadget>
<output>4</output>

<gadget id="calculator">4 ** 2</gadget>
<output>16</output>

<gadget id="calculator">3.14 * 16</gadget>
<output>50.24</output>

<gadget id="calculator">25.12 / 50.24</gadget>
<output>0.5</output>

<result>0.5</result>