Re: [Haskell-cafe] the complex package is hidden

On Sun, Sep 28, 2014 at 01:38:55PM -0700, briand@aracnet.com wrote:

On Sun, 28 Sep 2014 20:58:42 +0100 Tom Ellis wrote:

...

On Sun, Sep 28, 2014 at 12:55:53PM -0700, briand@aracnet.com wrote:

...

surprisingly i can't seem to google an answer to this:

Could not find module `Complex' It is a member of the hidden package `haskell98-2.0.0.2'. Use -v to see a list of the files searched for.

I believe `Complex` was renamed `Data.Complex`.

aha. i thought it was something like that.

But there's a bit of a weirdness.

Prelude> import Data.Complex Prelude Data.Complex> :browse data Complex a = !a :+ !a cis :: RealFloat a => a -> Complex a conjugate :: RealFloat a => Complex a -> Complex a imagPart :: RealFloat a => Complex a -> a magnitude :: RealFloat a => Complex a -> a mkPolar :: RealFloat a => a -> a -> Complex a phase :: RealFloat a => Complex a -> a polar :: RealFloat a => Complex a -> (a, a) realPart :: RealFloat a => Complex a -> a Prelude Data.Complex>

So that works, but

import Data.Complex

in my code does _not_ work.

btw. ghc 7.6.1.

So what's the error message?