首先是牛顿法:牛顿法:https://blog.csdn.net/qq_36330643/article/details/78003952这里:\(y=f(x_0)+(x-x_0)f^{'}(x_0)\)\(y=0,x=x_{k+1},x=x_k\)\(x_{k+1}=x_{k}-f(x_k)/f^{'}(x_k)\)计算\(\sqrt{452}\)\(f(x)=x^{2}-452\)\(x_{k+1}=x_{k}-x_{k}/2+266/