Put a pot of flowers every 0.628 meters on the edge of a circular fountain with a diameter of 3 meters, how many pots can be placed in total.
在直径是3米的圆形喷水池边上每隔0.628米放一盆花，一共可以放多少盆．
<gadget id="calculator">3 / 0.628</gadget>
<output>4.77707</output>

<gadget id="calculator">3.14 * 4.77707</gadget>
<output>15</output>

<result>15</result>