(1/2)+(1/4)+(1/8)+(1/16)+(1/32)+(1/64)+...+(1/512)+(1/1024)= How many.
(1/2)+(1/4)+(1/8)+(1/16)+(1/32)+(1/64)+…+(1/512)+(1/1024)=多少．
<gadget id="calculator">1 / 1_024</gadget>
<output>1/1_024 = around 0.000977</output>

<gadget id="calculator">1 - (1/1_024)</gadget>
<output>1_023/1_024 = around 0.999023</output>

<result>1_023/1_024 = around 0.999023</result>