public static bool ExpressionsAreEqual(string expected, string actual)
{
var x = SymbolicExpression.Variable("x");
SymbolicExpression e = null;
try
{
e = SymbolicExpression.Parse(expected.CleanExpression());
}catch (Exception ex)
{
}
var a = SymbolicExpression.Parse(actual);
for (int i = 1; i >= 0; i <<= 1)
{
var resExpected = e.Substitute(x, SymbolicExpression.FromInt64(i)).Approximate().ToString();
var resActual = a.Substitute(x, SymbolicExpression.FromInt64(i)).Approximate().ToString();
try
{
var resDoubleExpected = double.Parse(resExpected, System.Globalization.CultureInfo.GetCultureInfo("en-US").NumberFormat);
var resDoubleActual = double.Parse(resActual, System.Globalization.CultureInfo.GetCultureInfo("en-US").NumberFormat);
Assert.AreEqual(resDoubleExpected, resDoubleActual, 10 * Math.Pow(10, Math.Log10(Math.Abs(resDoubleExpected)) - 9));
}catch (Exception ex)
{
throw;
}
}
return(true);
}