Subject: Re: 提示:有關作業二的第二題

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Posted by Casper Chen on March 12, 1997 at 00:12:53:

In Reply to: Re: 提示:有關作業二的第二題 posted by Chong-ming on March 11, 1997 at 22:04:34:

> J = J(ones(n,1),:);
> 看得用力一點,就會明白vector運算是如何利用
> 【空間換取時間】了。

請問一下上面這個式子,matlab到底是怎麼運算的?
我用J=J(ones(9,2),:);
出來的結果每一個column有18個row?!



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