Is expected value for TestReciprocal003() THE correct value ?

[schlebe]

I have changed some functions in BigDecimal application and I adapt now the tests.

I have a issue with TestReciprocal003() function.

You indicate that requested value is "12.000000000000004" (with 15 decimal) but with my new Divide() function I found another value
that is "12.000000000000048" !

I tested using BigInteger and I get same value as mine !

BigInteger nNumerator = 1;
nNumerator *= 1000000000000000; //divisor is multiplied by 10^15, numerator too
nNumerator *= 1000000000000000; // for precision = 15

BigInteger nDivisor = 83333333333333;
BigInteger bi = BigInteger.Divide(nNumerator, nDivisor);
BigDecimal bd = new BigDecimal(bi,-15); // = 12.000000000000048 (with 15 decimal)

I tested with Decimal and I get same value as mine !

Decimal d = 1m / 0.083333333333333m; //= 12.000000000000048 (with 15 decimal)

The expected value seems to be incorrect !
Your Divide() function seems to Precision-1 and not Precision !

When I run your Divide() function, I get 12.00000000000004 (with 14 decimal) but expected value (in test code) is 12.000000000000004 (with 15 decimal). Your computed value is correct limited to 14 decimals but requested precision is 15 !

What you thing about ?

[AdamWhiteHat]

Decimal d = 1m / 0.083333333333333m; //= 12.000000000000048 (with 15 decimal)

Well your denominator value has 1 less three than mine:

0.083333333333333 vs.
0.0833333333333333

so it makes sense that your ...48 would start 1 more decimal place to the left than mine.