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no Complex class in Pharo?

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LawsonEnglish

no Complex class in Pharo?

Was this done just for streamlining, or are there known bugs in the
implementation of Complex in Squeak?

L.

Stéphane Ducasse

Re: no Complex class in Pharo?

On Mar 24, 2012, at 8:20 PM, Lawson English wrote:

> Was this done just for streamlining, or are there known bugs in the implementation of Complex in Squeak?

no there were a lot of discussions three years ago about the fact that
nobody used complex
the implementation was not coherent
Now I think that serge packaged it with its quaternium implementation.

Stef
>
> L.
>

Schwab,Wilhelm K

Re: no Complex class in Pharo?

Stef,

One thing that must not happen is "automatic" use of complex numbers. Things like -1 sqrt should raise an error. If one wants a complex result, then -1 asComplex sqrt would be a nice choice. That way, one can choose whether or not complex numbers are viable - many times, they are not wanted.

Bill

________________________________________
From: [hidden email] [[hidden email]] on behalf of Stéphane Ducasse [[hidden email]]
Sent: Saturday, March 24, 2012 4:29 PM
To: [hidden email]; [hidden email]
Subject: Re: [Pharo-project] no Complex class in Pharo?

On Mar 24, 2012, at 8:20 PM, Lawson English wrote:

> Was this done just for streamlining, or are there known bugs in the implementation of Complex in Squeak?

no there were a lot of discussions three years ago about the fact that
nobody used complex
the implementation was not coherent
Now I think that serge packaged it with its quaternium implementation.

Stef
>
> L.
>

Nicolas Cellier

Re: no Complex class in Pharo?

In reply to this post by Stéphane Ducasse

http://www.squeaksource.com/Math-Complex

Gofer new
    
  squeaksource: 'MetacelloRepository';
    
  package: 'ConfigurationOfComplex';
    
  load.

((Smalltalk at: #ConfigurationOfComplex) project version: #'stable') perform: #load.

Nicolas

Le 24 mars 2012 21:29, Stéphane Ducasse <[hidden email]> a écrit :

On Mar 24, 2012, at 8:20 PM, Lawson English wrote:

> Was this done just for streamlining, or are there known bugs in the implementation of Complex in Squeak?

no there were a lot of discussions three years ago about the fact that
nobody used complex
the implementation was not coherent
Now I think that serge packaged it with its quaternium implementation.

Stef
>
> L.
>

Nicolas Cellier

Re: no Complex class in Pharo?

Le 25 mars 2012 12:17, Nicolas Cellier <[hidden email]> a écrit :

http://www.squeaksource.com/Math-Complex

Oops, it was http://www.squeaksource.com/Complex

Gofer new squeaksource: 'MetacelloRepository'; package: 'ConfigurationOfComplex'; load. ((Smalltalk at: #ConfigurationOfComplex) project version: #'stable') perform: #load.
Nicolas

Le 24 mars 2012 21:29, Stéphane Ducasse <[hidden email]> a écrit :

On Mar 24, 2012, at 8:20 PM, Lawson English wrote:

> Was this done just for streamlining, or are there known bugs in the implementation of Complex in Squeak?

no there were a lot of discussions three years ago about the fact that
nobody used complex
the implementation was not coherent
Now I think that serge packaged it with its quaternium implementation.

Stef
>
> L.
>