In the formula 3.6-4b, when b=0.65, what is the result of the formula equal to?
在式子3.6-4b中，当b=0.65时，式子的结果等于多少．
<gadget id="calculator">4 * 0.65</gadget>
<output>2.6</output>

<gadget id="calculator">3.6 - 2.6</gadget>
<output>1</output>

<result>1</result>