Hello (about factoring into explicit algebraic numbers)

Robert Dodier a écrit :

>On 11/4/05, Stavros Macrakis  wrote:
>
>  
>
>> I think the helpful and educational answer to queries like this is a simple
>>little Maxima function that uses Solve to find roots and constructs the
>>polynomial.  The user should quickly realize that the results are usually
>>uninteresting. Another useful variant would factorize into *real* factors
>>(as requested by a previous user). Then there's the floating case, where
>>realroots/allroots are the right way to proceed (though of course the
>>numerical result may be numerically unstable).
>>    
>>
>
>This is a great idea  -- my $0.02 is that it should be implemented as an
>extension of the existing factor function, e.g. something like
>
>  factor (expr, 'complex) => allow complex factors
>  factor (expr, 'real) => allow real factors
>  factor (expr, 'float) => numerical factors
>  
>
Yes !

>I believe it will make Maxima more comprehensible to combine these
>operations with the related operations already carried out by factor.
>
>For what it's worth,
>Robert Dodier
>
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>
>  
>


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