BigInteger division in C#

Question

I am writing a class which needs accurate division of the BigInteger class in C#.

Example:

BigInteger x = BigInteger.Parse(\"10000000000000000000000         


        

Answer 1

Sound like a job for Fixed Point (rather than floating point).

Simply pre-shift the numerator by the number of fractional bits you need, like this:

BigInteger quotient = (x << 10) / y;

That would give you 10 bits after the dot (approximately 3 decimal digits).