possion

说明：  本文从理论上推导出了 如何使用迭代方法解联立方程组, 在计算精度范围内严格地给出了泊松分布下的线性多 重回归的求解, 并且也解决了“ 面积亏损” 的问题(This paper theoretically out how to use the iterative method for solving simultaneous equations, in the context of strict accuracy of the Poisson distribution is given under the solution of linear multiple regression, and also solve the " loss area" problem)