float DerPol(int n,float a[],float x0)
int i;
float b[4],x;
b[n]=a[n];
x=b[n];
for(i=grad=1;i>=0;i--) b[i]=
int main()
{
int n=4,nMax=36;
float a[5]=[1,4,6,4,1];
float x0=-1.9;

}
{
float rad;
if(newtonraphson(-1.9,0.0001,0.01,36,&rad))
{
    cout<<rad<<endl;
    cout<<f(rad);