各位大大好
我不懂的題目如下
please count the numbers of addition & multiplication for the following operations.
let a and b be nXn matrices
1000a+3b
aa+b
但我不知道答案是什麼?
有大大知道嗎?
非常感謝
[數學]please count the numbers of addition & multiplication fo
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由 binglee 於 星期日 四月 27, 2008 5:03 pm
1000*a => multiplication n^2 times
3*b => multiplication n^2 times
1000a + 3b => addition n^2 times
addition n^2 times
multiplication 2(n^2) times
a*a => multiplication (n^2)*n times and addition (n^2)*(n-1) times
aa + b => addition n^2 times
addition n^3 times
multiplication n^3 times
3*b => multiplication n^2 times
1000a + 3b => addition n^2 times
addition n^2 times
multiplication 2(n^2) times
a*a => multiplication (n^2)*n times and addition (n^2)*(n-1) times
aa + b => addition n^2 times
addition n^3 times
multiplication n^3 times
其實,一個人過日子也還不錯
只是,有妳在身邊一切更美好
只是,有妳在身邊一切更美好
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binglee - 研究生
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