[Haskell-cafe] What's NaN?

[Yann Golanski]

Quoth PR Stanley on Wed, May 28, 2008 at 08:04:44 +0100
> Hello
> Why does sqrt (-16) return NaN? What is NaN?

NaN stands for Not a Number. 

See the complex library for how to have complex numbers.

-- 
yann at kierun.org             -= H+ =-             www.kierun.org
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