A 5-meter-long bamboo pole is inserted into a pool. The length of the bamboo pole submerged in the mud is 0.65 meters. The depth of the pool is 2.15 meters. How many meters is the wet part of the bamboo pole?
一根5米长的竹竿插入水池中，没入泥中长0.65米，水池深2.15米，竹竿未湿部分是多少米？
<gadget id="calculator">5 - 0.65 - 2.15</gadget>
<output>2.2</output>

<result>2.2</result>