一元二次方程求根公式

1

利用一元二次方程的求根公式构造二元二次方程组的迭代算法，通过图解二元二次方程组的解来说明迭代算法在实践中的应用。

In this paper , the author gives the formula of roots of a quadric equation over a field of2 k elements and presents the problem .
2

通过研究混合泥质砂岩有效介质通用HB电阻率模型的求解方法，表明模型导出的关于S（wt）的方程是一个一元二次方程，可用求根公式求解，解法非常简单。

After deriving Swt from the model , we find out that the water saturation equation is a quadratic equation about Swt , so its solution is very simple and obtained by using the standard quadratic-root formula .