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Feb 26th, 2017
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  1. function squareRoot(a, eps) {
  2. var xn1, xn;
  3. xn1 = a / 2;
  4. do {
  5. xn = xn1;
  6. xn1 = (xn + a / xn) / 2;
  7. } while (Math.abs(xn1 - xn) / xn > eps);
  8. return xn1;
  9. }
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