Newtoniterate

说明：  数值计算牛顿迭代法的matlab源程序 说明如下： ％fun----input,the part as the form of f(x) in the equation f(x)=0 ％ ini----input,sets the starting point to ini ％ err----input,sets admissible error ％ sol----output,returns the root of equation(Numerical calculation of the Newton iteration matlab source described as follows: fun---- input, the part as the form of f (x) in the equation f (x) = 0 ini---- input, sets the starting point to ini err---- input, sets admissible error sol---- output, returns the root of equation)