4.86e+165
=4860000000000+[一百六十個零]
=486000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
^.^
小朋友☆小朋友 寫到: 請問4.86e+165是什麼意思?等於多少呢?