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Shreedharacharya

A
import 'dart:math';

//this function return a list of roots of a quadratic equation
// [x1, x2] where x1 and x2 are roots of
// aX^2 + bX + c = 0
List shreedharacharya(double a, double b, double c) {
  double d = b * b - 4 * a * c;
  List A = [];
  if (d < 0) {
    print('Imaginary roots');
  } else if (d == 0) {
    A.add(-b / (2 * a));
  } else {
    A.add((-b + sqrt(d)) / (2 * a));
    A.add((-b - sqrt(d)) / (2 * a));
  }
  return A;
}

void main() {
  double a = 1.00, b = -4.00, c = 4.00;
  List p = shreedharacharya(a, b, c);
  print(p);
}