Then, this paper introduces the math foundation required by ECC, including the addition rule for elliptic curve point defined over finite field.

其次介绍了ECC的数学基础，对有限域上椭圆曲线点的运算规则进行了详细描述。

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In contrast to the finite element method, another form of numerical method which is based on the using of rectangular math covers in manifold method is proposed.

作者在流形方法里采用矩形作为数学覆盖，从另一角度提出了一种不同于有限元法的数值分析方法。

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