AP to implement Horner Rule

#include

double horner(double *coeffs, int s, double x)
{
int i;
double res = 0.0;

for(i=s-1; i >= 0; i--)
{
res = res * x + coeffs[i];
}
return res;
}


int main()
{
double coeffs[] = { -19.0, 7.0, -4.0, 6.0 };

printf("%5.1f\n", horner(coeffs, sizeof(coeffs)/sizeof(double), 3.0));
return 0;
}
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