S4E27. 比实数还要“多”的数——“超现实数”入门

<p style="color:#333333;font-weight:normal;font-size:16px;line-height:30px;font-family:Helvetica,Arial,sans-serif;hyphens:auto;text-align:justify;" data-flag="normal">超现实数的定义和例子：</p><p style="color:#333333;font-weight:normal;font-size:16px;line-height:30px;font-family:Helvetica,Arial,sans-serif;hyphens:auto;text-align:justify;" data-flag="normal"><img data-key="0" src="http://imagev2.xmcdn.com/storages/a90b-audiofreehighqps/55/5E/GKwRIasJAliFAAJicQJtZcAc.png!op_type=4&amp;device_type=ios&amp;upload_type=attachment&amp;name=mobile_large" alt="" data-origin="http://imagev2.xmcdn.com/storages/a90b-audiofreehighqps/55/5E/GKwRIasJAliFAAJicQJtZcAc.png?op_type=0" data-large="http://imagev2.xmcdn.com/storages/a90b-audiofreehighqps/55/5E/GKwRIasJAliFAAJicQJtZcAc.png!op_type=4&amp;device_type=ios&amp;upload_type=attachment&amp;name=mobile_large" data-large-width="750" data-large-height="547.9195088676671" data-preview="http://imagev2.xmcdn.com/storages/a90b-audiofreehighqps/55/5E/GKwRIasJAliFAAJ...