----- Mail original ----- > Hi.
Hello Gilles, > > Should the "Fraction" type be able to represent > -0 / 1 > and keep a record of the sign, such that, if "c" is the above > fraction, > 1d / c.doubleValue() > is equals "Double.NEGATIVE_INFITNITY"? IMHO, no. The fact 0 is signed for doubles is really a trick set up in the IEE754 standard only for dealing with branch cuts (like the division you present). It is not available for other types like int or longs where 0 is not signed and special numbers like infinity and NaN and even subnormals do not exist. Our fractions are both closer to the mathematical Z set and to the computer science int primitives pairs than to double. There is a conversion method doubleValue, but it should rather be considered an extension than a core feature. Luc > > > Gilles > > --------------------------------------------------------------------- > To unsubscribe, e-mail: dev-unsubscr...@commons.apache.org > For additional commands, e-mail: dev-h...@commons.apache.org > > --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@commons.apache.org For additional commands, e-mail: dev-h...@commons.apache.org
