public override string ToString()
{
string result = string.Format("Equation:\ny''[x] + {0} * y'[x] + {1} * y[x] = {2}\n",
PX.ToString(), QX.ToString(), FX.ToString());
result += string.Format("Range: [{0}, {1}]\n", Math.Round(Boundaries.Key, 2), Math.Round(Boundaries.Value, 2));
result += string.Format("Conditions:\n{0} * y[{1}] + {2} * y'[{1}] = {3}\n",
alpha0, a, alpha1, A);
result += string.Format("{0} * y[{1}] + {2} * y'[{1}] = {3}\n",
betta0, b, betta1, B);
return(result);
}
