Note on divide(): We compared the
divide(int BigDecimal, int roundingMode) signature of the divide() method,
though com.ibm.math and be.arci.math have a more functionally sound replacement
for this using the MathContext parameter.
Note on divide():
com.ibm.math.BigDecimal and be.arci.math.BigDecimal also have a divideInteger()
and remainder() method, and be.arci.math.BigDecimal further combines these two
in a divideAndRemainder() method, inspired by the like-named method of
java.math.BigInteger.
