Re: [Haskell-cafe] Re: Double -> CDouble, realToFrac doesn't work

On Friday 05 November 2004 14:11, you wrote:
It's worse: Since according to IEEE +0 is not equal to -0, atan2 is not a function!
Sorry, I meant to write: Since according to IEEE +0 *is* to be regarded as equal to -0, atan2 is not a function. (Because it gives different values for argument combinations -0, +0.) Ben

Benjamin Franksen
It's worse: Since according to IEEE +0 is not equal to -0, atan2 is not a function!
Sorry, I meant to write: Since according to IEEE +0 *is* to be regarded as equal to -0, atan2 is not a function. (Because it gives different values for argument combinations -0, +0.)
From my point of view it is a function. Only == is not the finest equality possible (but the one which is more useful).
-- __("< Marcin Kowalczyk \__/ qrczak@knm.org.pl ^^ http://qrnik.knm.org.pl/~qrczak/
participants (2)
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Benjamin Franksen
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Marcin 'Qrczak' Kowalczyk