摘要:
Definition 1.1.1.Let $\sum$ be a set of points in the plane $\mathbf{R}^2$. One saysthat a point $P$ is constructible with ruler and compass from $\su... 阅读全文
posted @ 2012-09-21 21:13
叶卢庆
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摘要:
Definition 1.1.1.Let $\sum$ be a set of points in the plane $\mathbf{R}^2$. One saysthat a point $P$ is constructible with ruler and compass from $\su... 阅读全文
posted @ 2012-09-21 21:13
叶卢庆
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摘要:
设$a0$(还剩下$\Delta x<0$的情形,以及$x_0=a$,$x_0=b$的情形,但是这些与下面的都大同小异,事实上,对于$\Delta x<0$的情形,只要下面的证明用上$\int_a^bf=-\int_b^af$就足够了),我们要证的是, \begin{equation}\label{... 阅读全文
posted @ 2012-09-21 14:48
叶卢庆
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