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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=24962 [math] MathUtils.sign(NaN) returns -1 instead of NaN ------- Additional Comments From [EMAIL PROTECTED] 2003-11-25 14:35 ------- As the original author of this sign(), I just want to give etymological history. My sign() was intended to be used as it apparently is in the static Complex#sqrt: a way to be able to multiply by the sign of a number. In this role, it would not be inconsistent to return NaN for a NaN argument, but I believe in the particular use that prompted me to think of creating this method, an argument of 0 should still return +1. I support renaming this sign() and implementing a new version of the existing method that has the requested behavior, as my usage is almost certainly less common than that being requested. The name "positiveSign" isn't as clear as I'd like, but I can't think offhand of a better one (the first ones that came to mind were signIsPositive, signum, and sgn). --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
