Calculation: 1-(1/2)-(1/4)-(1/8)-…-(1/32)-(1/64).
计算：1-(1/2)-(1/4)-(1/8)-…-(1/32)-(1/64)．
<gadget id="calculator">1 / 64</gadget>
<output>1/64 = around 0.015625</output>

<gadget id="calculator">1 - (1/64)</gadget>
<output>63/64 = around 0.984375</output>

<gadget id="calculator">1 - (63/64)</gadget>
<output>1/64 = around 0.015625</output>

<result>1/64 = around 0.015625</result>