Calculation: (1/2)+(1/(2**2))+(1/(2**3))+(1/(2**4))+(1/(2**5) )+...(1/(2**1))=
计算：(1/2)+(1/(2**2))+(1/(2**3))+(1/(2**4))+(1/(2**5))+…(1/(2**1))=
<gadget id="calculator">2 ** 0</gadget>
<output>1</output>

<gadget id="calculator">1 / 1</gadget>
<output>1</output>

<gadget id="calculator">2 ** 1</gadget>
<output>2</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 - (1/2)</gadget>
<output>1/2 = around 0.5</output>

<result>1/2 = around 0.5</result>