public void DivideBigDecimalII()
{
BigDecimal divd1 = new BigDecimal(value2, 4);
BigDecimal divd2 = BigDecimal.Parse("0.0023");
BigDecimal divd3 = divd1.Divide(divd2, 3, RoundingMode.HalfUp);
Assert.IsTrue(divd3.ToString().Equals("536285217.391") && divd3.Scale == 3, "1233456/0.0023 is not correct");
divd2 = new BigDecimal(1345.5E-02D);
divd3 = divd1.Divide(divd2, 0, RoundingMode.Down);
Assert.IsTrue(divd3.ToString().Equals("91672") && divd3.Scale == 0,
"1233456/13.455 is not correct or does not have the correct scale");
divd2 = new BigDecimal(0000D);
Assert.Throws <ArithmeticException>(() => divd1.Divide(divd2, 4, RoundingMode.Down));
}
public void DivideBigDecimalI()
{
BigDecimal divd1 = new BigDecimal(value, 2);
BigDecimal divd2 = BigDecimal.Parse("2.335");
BigDecimal divd3 = divd1.Divide(divd2, RoundingMode.Up);
Assert.IsTrue(divd3.ToString().Equals("52873.27") && divd3.Scale == divd1.Scale, "123459.08/2.335 is not correct");
Assert.IsTrue(divd3.UnscaledValue.ToString().Equals("5287327"),
"the unscaledValue representation of 123459.08/2.335 is not correct");
divd2 = new BigDecimal(123.4D);
divd3 = divd1.Divide(divd2, RoundingMode.Down);
Assert.IsTrue(divd3.ToString().Equals("1000.47") && divd3.Scale == 2, "123459.08/123.4 is not correct");
divd2 = new BigDecimal(000D);
Assert.Throws <ArithmeticException>(() => divd1.Divide(divd2, RoundingMode.Down));
}
public BigDecimal ToBigDecimal(MathContext mc)
{
/* numerator and denominator individually rephrased
*/
var n = new BigDecimal(Numerator);
var d = new BigDecimal(Denominator);
/* the problem with n.divide(d,mc) is that the apparent precision might be
* smaller than what is set by mc if the value has a precise truncated representation.
* 1/4 will appear as 0.25, independent of mc
*/
return(BigMath.ScalePrecision(n.Divide(d, mc), mc));
}