R E A R R A N G E

1 files changed, 40 insertions, 0 deletions

diff --git a/OLD/ee1301/wk3/lab3/RootBabylon2.cpp b/OLD/ee1301/wk3/lab3/RootBabylon2.cpp
new file mode 100644
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+++ b/OLD/ee1301/wk3/lab3/RootBabylon2.cpp
@@ -0,0 +1,40 @@
+#include <iostream>

+#include <iomanip>

+#include <cmath>

+using namespace std;

+

+double gennewGuess(double n, double old_guess) {

+  double real, old;

+  real=sqrt(n);

+  double new_guess = ( old_guess + n / old_guess ) / 2;

+  old=new_guess;

+  if (((new_guess-real)/real)>0.01) { //This will be true if the difference between the real root and guess is more than 1%.

+  //  cout << old << endl;

+    return gennewGuess(n, old);

+  } else {

+  //  cout << old << endl;

+    return new_guess;

+  }

+}

+int main () {

+  double temp;

+  char cont;

+  do {

+  cout << "enter a value: ";

+  cin >> temp;

+  int n=temp;

+  if (temp<=0) {

+    cout << "Please enter a valid input(Positive Integer)." << endl;

+    return sqrt(-1);

+  }

+  //cout << "Guessing..." << endl;

+  temp = gennewGuess(temp, 1.0);

+  cout << fixed << setprecision(0) << "square root of " << n << " is " << temp << endl

+  << "continue? (y/n): ";

+  cin >> cont;

+  if (cont!='n'&&cont!='y') {

+    return -1;

+  }

+} while (cont!='n');

+  // << "Actual Value: " << real << endl;

+}