public void MultiplyBigDecimal()
{
BigDecimal multi1 = new BigDecimal(value, 5);
BigDecimal multi2 = new BigDecimal(2.345D);
BigDecimal result = multi1.Multiply(multi2);
Assert.IsTrue(result.ToString().StartsWith("289.51154260") && result.Scale == multi1.Scale + multi2.Scale,
"123.45908 * 2.345 is not correct: " + result);
multi1 = BigDecimal.Parse("34656");
multi2 = BigDecimal.Parse("-2");
result = multi1.Multiply(multi2);
Assert.IsTrue(result.ToString().Equals("-69312") && result.Scale == 0, "34656 * 2 is not correct");
multi1 = new BigDecimal(-2.345E-02);
multi2 = new BigDecimal(-134E130);
result = multi1.Multiply(multi2);
Assert.IsTrue(result.ToDouble() == 3.1422999999999997E130 && result.Scale == multi1.Scale + multi2.Scale,
"-2.345E-02 * -134E130 is not correct " + result.ToDouble());
multi1 = BigDecimal.Parse("11235");
multi2 = BigDecimal.Parse("0");
result = multi1.Multiply(multi2);
Assert.IsTrue(result.ToDouble() == 0 && result.Scale == 0, "11235 * 0 is not correct");
multi1 = BigDecimal.Parse("-0.00234");
multi2 = new BigDecimal(13.4E10);
result = multi1.Multiply(multi2);
Assert.IsTrue(result.ToDouble() == -313560000 && result.Scale == multi1.Scale + multi2.Scale,
"-0.00234 * 13.4E10 is not correct");
}