fortran90/95格式，方便科学计算中调用，Newton-Raphson，可用来寻找线性/非线性方程f(x)=0的数值解。标准的数学表达式f(x)表示f是变量x的函数，其通常的表达形式为f(x,a,b,...)=0，f被定义为多于一个变量的函数。在这种情况下，Newton-Raphson算法试图把x以外的变量固定并作为参数，而寻找关于变量x的数值解。-fortran90/95 format, convenience called scientific computing, Newton-Raphson, can be used to find the linear/non-linear equation f (x) = 0 the numerical solution. The standard mathematical expressions represented by f (x) f is a function of the variable x, which typically forms the expression for f (x, a, b, ...) = 0, F is defined a function of more than one variable. In this case, the variables other than x is fixed and as a parameter, and the Newton-Raphson algorithm attempts to find a numerical solution for variable x.