[R] Partial Fraction Decomposition

[WRAY NICHOLAS]

I am not aware that R really does symbolic manipulation in the way which you
want, but I would have thought that this process would make a very pretty little
problem to solve for you yourself, in that you could write a programme to
analyse the original expression as a string of characters, whose particular
nature means that you have to make certain choices.  Start with a simple
example, say (x^2 + x +1)/(x+1) (i haven't actually worked this out) and
gradually work up

Nick

> 
>     On 26 November 2016 at 23:18 Tom Mosca <tom at vims.edu> wrote:
> 
> 
>     Hello Folks,
> 
>     As a neophyte R user I frequently have questions, and I�m sorry to bother
> experienced users with what may appear to be trivial questions to which I
> should be able to find answers without help. I�ve searched everywhere I know
> to look, and can�t find any reference to this question. Perhaps I just haven't
> guessed a correct keyword for my searches. I apologize in advance.
> 
>     Given a rational expression P/Q with P and Q being polynomials that are
> prime in relation to each other, and with Q factored, is there an R function
> or package that will return the partial fraction decomposition of P/Q?
> 
>     For example:
>     Given (3x^3+x^2-8x+6)/(x^2)(x-1)^2
>     Return 4/x + 6/x^2 � 1/(x-1) + 2/(x-1)^2
> 
>     Thank you, Tom
> 
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> 
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