筆記：udacity計算機科學導論- 課程11/19 python取冪, DRAM 存儲原理、容量、速度

求a的n次冪/方，在python中，僅用2個星表達，如2**10表示2的10次方。神奇！ 如在課程中說道："In Python we can do exponentiation by using a star star. This is what we would write mathematically as to to the power 10. So 2 to the power 10 is

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