WenhaoCui_6153876930_HW1_Q1
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#include <iostream>
#include <cmath>
using namespace std;
double mySqrt(double x){
double estimate = 1;
double newEstimate = 0.5*(estimate + x/estimate);
while (abs(newEstimate-estimate)>0.000001){
estimate = newEstimate;
newEstimate = 0.5*(estimate + x/estimate);
}
return estimate;
}
int main() {
double s = mySqrt(5);
cout << s << endl; // expect 2.236
return 0;
}
Cpp
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