y=ln(x+3),x0=1,求方程的根，用牛顿法。我的答案总乱码啊，为什么

Question

#include
#include
int main( )
{

int M=1000,k;

double x0,x1=1,eps=0.000001;
k=0;
for(;;) {

x0=x1;
k++;

printf("%.6f\n",x1);

x1=x0-log(x0+3)*(x0+3);
if(k>=M||fabs(x1-x0)<=eps)
break;
}

if(fabs(x1-x0)<=eps)
printf("%.6f\n",x1); }

Answer 1

http://wenku.baidu.com/link?url=NOb5gSNvZcpvifAYcP5E_2iMKLVsX52pqQRQ06Om8gE9upu7zzdGmBqO_Kg1e-XQX3VhpLiMa-XXiNvAKfuKBVPI7OO2Ou343zrkTWKIwr7